) and glutamic acid (E)] and two hydrophobic side-chains [phenylalanine (F)]. On the basis of biophysi- cal data and the number of phenylalanine�phenylalanine side chain contacts. Two side chains k and l, of van der Waals in Figure 2(F), the early steps are dominated by ...

the acrylic acid polymers or copolymers esterified with fluorinated alcohols, .... with perfluorinated side chains introduced by esterification; the ...

Aug 11, 2011 ... Computer graphics representation of interactions between the guanosine triphosphate (on the right side) and amino acids side chains of a ...

Water solubility and degradability of side chains estrifying phthalic acid are factors possible to influence the degradation of phthalic acid esters (PAEs). To investigate the importance of these factors, degradation of butyl 2-ethylhexyl phthalate (BEHP)...

Elastic and quasielastic neutron scattering experiments are used to investigate the dynamics of side chains in proteins, using hydrophobic peptides, from dry and hydrated powders up to solutions, as models. The changes of the internal dynamics of a prototypical hydrophobic amino acid, N-acetyl-leucine-methylamide, and alanine amino ...

The DNA-templated polymerization of synthetic building blocks provides a potential route to the laboratory evolution of sequence-defined polymers with structures and properties not necessarily limited to those of natural biopolymers. We previously reported the efficient and sequence-specific DNA-templated polymerization of peptide nucleic acid (PNA) aldehydes. Here, we report ...

Fatty amino acids are alpha-amino acids with a linear or branched alkyl side chain. Of interest is the use of fatty amino acids monomers and oligomers as conjugating units for biologically active compounds. The conjugates formed would be expected to posse...

It involves five single-point mutations that allow amino-acid side chains to form three favorable hydrogen bonds with GTP and prevent water from penetrating ...

buckminsterfullerene affects surrounding water structure. J Phys Chem B 112:2981�2990. 23. Hummer G, Rasaiah JC

Groups on the side chain of T252 in Escherichia coli leucyl-tRNA synthetase are important for discrimination of amino acids and cell viability. Biochem. Biophys. Res. Commun.

such as chlorogenic acid in coffee, psoralens in celery, or indole carbinol in broccoli turned out to be important

This paper introduces polar and hydrophobic variants of the unnatural amino acid Hao, which mimics the hydrogen-bonding functionality of one edge of a ?-strand. In these variants, the methyl side chain of Hao is replaced with acidic, basic, and hydrophobic groups. These modifications can impart improved solubility ...

... Title : Suppression of Side Chain Crystallization and Transformation of Monotropic Mesophases into Enantiotropic Mesophases by ...

Conformationally preorganized peptide nucleic acids (PNAs) have been synthesized through backbone modifications at the ?-position, where R = alanine, valine, isoleucine, and phenylalanine side chains. The effects of these side-chains on the conformations and hybridization properties of PNAs were determined using a ...

This laboratory has introduced a chemical method for residue-specific protein cleavage and has provided a preliminary assessment of the suitability of microwave-accelerated acid cleavage as a proteomic tool. This report is a continuing assessment of the fate of common protein modifications in microwave-accelerated acid cleavage. We have examined the ...

... 5 amino acid changes have been inserted into the native molecule, encoding 5 N-linked carbohydrate side chains rather than the 3 N-linked carbohydrate chains ...

A direct demonstration was made for the first time that the principal type of linkage between carbohydrate side chains of bovine submaxillary mucin and the main peptide chain are glycosidic linkages between N-acetyl galactosamine and the hydroxyl groups o...

... backbones enhance the decoupling of the motions of the side chain and main chain and, therefore, increase the rate of side-chain crystallization. ...

A series of anacardic acid analogues possessing different side chains viz. phenolic, branched, and alicyclic were synthesized and their antibacterial activity tested against methicillin-resistant Staphylococcus aureus (MRSA). The maximum activity against this bacterium occurred with the branched side-chain ...

Waterproofing the Heme Pocket ROLE OF PROXIMAL AMINO ACID SIDE CHAINS IN PREVENTING HEMIN LOSS FROM Leu89 , Ile99 , and Leu104 "waterproof" the heme pocket by forming a barrier to solvent penetration.7 0.08 H93G 660 140 Waterproofing the Heme9094 #12;sive 4-fold decrease in O2 affinity as the size

Three new complex heteroxylan side-chains acylated with ferulate and one arabinosyl ester of p-coumaric acid have been isolated from maize bran insoluble fibre after acidic hydrolysis and fractionation by gel permeation chromatography and semi-preparative RP-HPLC. The complete structural elucidation...

6-Alkylsalicylic acids inhibit the linoleic acid peroxidation catalyzed by soybean lipoxygenase-1 (EC 1.13.11.12, type 1) competitively and without pro-oxidant effects. This activity is largely dependent on the nature of their alkyl side chains. Inhibitory activities of anacardic acids, viz. ...

The discovery of high-ceiling natriuretic activity from a series of aminomethyl derivatives of ethyl [2,3-dichloro-4-(4-hydroxybenzoyl)phenoxy]acetate prompted our continued investigation of this new class of (aryloxy)acetic acid diuretics. Systematic alteration of the oxyacetic side chain has shown that the carboxylic ...

The partial molar volumes of tripeptides of sequence glycyl-X-glycine, where X is one of the amino acids alanine, leucine, threonine, glutamine, phenylalanine, histidine, cysteine, proline, glutamic acid, and arginine, have been determined in aqueous solution over the temperature range 10-90 degrees C using differential scanning densitometry . These data, ...

The orientational changes in optical nonlinear active side chains of polyamic acid alkyl amine salt monolayers before and after the imidization process were studied by optical surface second-harmonic generation (SHG). The polymeric Langmuir-Blodgett (LB) monolayer composed of the triphenylamino-(p-nitrophenyl)-ethylene group as a ...

The carboxyl terminal amino acids of the 411 residue fibrinogen gamma-chain play a significant role in blood clotting. One of the steps in the polymerization of fibrinogen to fibrin involves the intermolecular gamma-chain crosslinking of the side chains o...

Urine from patients with cerebrotendinous xanthomatosis (CTX) was found to contain a number of minor bile acids along with three major bile acids, 7-epicholic acid, norcholic acid, and cholic acid. The following minor bile acids were identified by combined gas-liquid ...

SummaryTwo bile acid derived molecules containing basic amino groups are reported to be efficient and unusual gelators of organic and aqueous solvents.

Peptide analogs in which one or more amino acids is replaced by a diaza- or triazacyclohexenone, or by an aza-, diaza-, or triazacyclohexenone that is substituted at the alpha-position with a side chain of an amino acid, display an improved ability to ass...

... of all protein moieties (side chains, peptide bonds, carboxylic acids and amines) by constructing tripeptides of the form ... sulfur atom of Met, and of amines and carboxylic acids (28). For the amino aci...

This project has led to new approaches to protein engineering through incorporation of non-natural amino acids. Protein stability and reactivity can be varied within wide limits via incorporation of fluorinated, brominated and unsaturated side chains.

The preparation of side-chain deuterated 2,4-dichlorophenoxyacetic acid (2,4-D) is described. The growthregulating properties of the product, examined by three methods, were similar to those of 2,4-D. (auth)

Two problems, the decomposition of the side chain to 20 ketone and the displacement of the oxygen function of C-12 toward C-11 to desoxycholic acid, are solved in a few reaction steps with higher yield than with the classical methods. Through a suitable c...

The structure and dynamics of the water hydrating peptides and proteins are examined here at atomic resolution via molecular dynamics simulations. Detailed solvation density and residence time data for all 20 L-amino acids in an end-capped AXA tripeptide motif are presented. In addition, the solvation of the protein chymotrypsin inhibitor 2 is investigated as a point of ...

A new model of side-chain-side-chain interactions for charged side-chains of amino acids, to be used in the UNRES force-field, has been developed, in which a side chain consists of a nonpolar and a charged site. The interaction energy between the nonpolar sites is composed of a Gay-Berne and a ...

A general method for synthesizing alpha-hydroxy N-acylindoles in one-pot via an acid-catalyzed condensation of a convertible isonitrile with water and various aldehydes is presented. These intermediates were incorporated into poly(alpha-hydroxy acid) copolymers bearing residues with functionalizable side chains, ...

A method is described for improving the discharge characteristics of an electrochemical cell having a cathode, a powdered metal anode and an aqueous alkaline electrolyte solution comprising the step of gelling an intimate mixture of the powdered metal anode and electrolyte solution with an agent. The agent comprises a material capable of absorbing water and having a carbohydrate backbone and water ...

Side-chain oligo- and polyglutamylation represents an important posttranslational modification in tubulin physiology. The particular number of glutamate units is related to specific regulatory functions. In this work, we present a method for the synthesis of building blocks for the Fmoc synthesis of peptides containing main chain glutamic ...

An accurate determination of the intrinsic hydrophilicity/hydrophobicity of amino acid side-chains in peptides and proteins is fundamental in understanding many areas, including protein folding and stability, peptide and protein function, protein-protein interactions and peptide/protein oligomerization, as well as the design of protocols for purification ...

Gly101, one of the conserved amino acid residues which was expected to be comprised in half-sphere-shaped S2 site small pocket of aqualysin I, a microbial thermophilic alkaline serine protease, was replaced by alanine, valine, or leucine to alterate the P2 specificity of the enzyme by excluding bulky P2 side chain of the substrate. By ...

The prediction of protein side-chain conformation is central for understanding protein functions. Side-chain packing is a sub-problem of protein folding and its computational complexity has been shown to be NP-hard. We investigated the capabilities of a hybrid (genetic algorithm/simulated annealing) technique for side-chain packing and ...

The purpose of this work was to investigate the difference in the hydrophobicities of various polyols and the nature of interactions between hydrophobic amino acid side chains and polyols. The interactions were explored by conducting solubility studies of three amino acid derivatives, N-acetyl tryptophanamide ...

A comprehensive description of the energetic, conformational, and vibrational features of the two amino acids (AAs) with polar side chains, i.e., serine and threonine, in aqueous environment, is provided. To adequately analyze the side chain conformational flexibility of these amino ...

A comprehensive description of the energetic, conformational, and vibrational features of the two amino acids (AAs) with polar side chains, i.e., serine and threonine, in aqueous environment, is provided. To adequately analyze the side chain conformational flexibility of these amino ...

Presented here is a first principles based molecular modeling investigation of the possible role of the side chain in effecting proton transfer in the short-side-chain perfluorosulfonic acid fuel cell membrane under minimal hydration conditions. Extensive searches for the global minimum energy structures of ...

Using the harmonic-approximation approach of the accompanying paper and AM1 energy surfaces of terminally-blocked amino-acid residues, we determined physics-based side-chain-rotamer potentials and the side-chain virtual-bond-deformation potentials of 19 natural amino-acid residues with side ...

Loss of side chains from different amino acid residues in a model peptide framework of RGGGXGGGR under electron capture dissociation conditions were systematically investigated, where X represents one of the twenty common amino acid residues. The alpha-carbon radical cations initially formed by N-Calpha cleavage of ...

TO OXIDATION BY HYPOCHLORITE ZACHARY D. NIGHTINGALE,* ANTONIO H. LANCHA, JR., SAMUEL K. HANDELMAN,* GREGORY G as a major oxidant. Numerous side chains of amino acids found in extracellular proteins can be modified, Met and Trp side chains of proteins might be able to protect Lys from chloramine ...

By virtue of the flexibility of the Langmuir-Blodgett (LB) technique we prepare LB films of polyamic acid alkylamine salt with different structures and use them as alignment layers for liquid crystals. The alignment ability depends upon the controllability of the structure. Also the side chain effects are discussed.

A mixture of two polyamic acids, one having an alkyl side chain and ordinarily used for vertical liquid crystal alignment and the other without a side chain and ordinarily used for planar alignment, is deposited on two substrates and baked at high temperatures. When the resulting cell is filled ...

The degradation of long-chain n-alkylbenzenes and n-alkylcyclohexanes by Alcanivorax sp. strain MBIC 4326 was investigated. The alkyl side chain of these compounds was mainly processed by ?-oxidation. In the degradation of n-alkylcyclohexanes, cyclohexanecarboxylic acid was formed as an intermediate. This compound ...

Naphthenic acids (NAs) occur naturally in oil sands and enter the environment through natural and anthropogenic processes. NAs comprise toxic carboxylic acids that are difficult to degrade. Information on NA biodegradation mechanisms is limited, and there are no studies on alkyl branched aromatic alkanoic acid biodegradation, despite ...

Effects of alkyl side chains (R-) on the electronic structural properties of aliphatic amino acids are investigated using quantum mechanical approaches. The carbon (C 1s) binding energy spectra of the aliphatic amino acids are derived from the C 1s spectrum of glycine (the parent spectrum) by the addition of ...

A number of Pseudomonas strains accumulated polyhdroxyalkanoate (PHA) from a variety of aromatic hydrocarbons. In many strains the level of PHA accumulation was dependent on the side chain length of the phenylalkanoic acid provided for growth. 4 of the 8 strains accumulated increased levels of PHA as the side ...

A new approach to synthesize optically active ?-amino-?-hydroxyl acid derivatives via chiral Br�nsted acid-Rh(2)(OAc)(4) cocatalyzed three-component reactions of diazo acetates with alcohols and imines is reported. A matched reaction system was identified to give the products in moderate diastereoselectivity and good enantioselectivity. Application of ...

A theoretical study on the polyamic acid (PAA) and its derivatives with different side chain (GPAA1-4) by semi-empirical PM3 is presented in this paper. After optimization, the authors get their balanceable geometric configurations. For all optimal geometric configurations, there is no imaginary frequency in vibrational analysis, which ...

The carboxylate side chains of Asp and Glu have significant coupling with the amide states of the backbone of Villin headpiece. In two dimensional spectroscopy, cross peaks are observed between these side chains and the main amide-I band. To model the absorption of the side ...

... we will demonstrate the molecular engineering of phase transitions of side chain liquid crystalline polymers by azeotropic living copolymerization ...

Studies were performed to ascertain the effect of urushiol analogues on the in vitro lymphocyte blastogenesis elicited by urushiol in peripheral blood lymphocytes taken from individuals sensitized to poison oak or ivy. Urushiol is a mixture of alkylcatechols composed of a catechol ring coupled to mono-, di-, or tri-unsaturated C-15 or C-17 carbon side ...

The conformations of the 5-alkyl chains of 5,5-dialkylbarbituric acid derivatives in polar and nonpolar media were determined from the magnitudes of the vicinal heteronuclear coupling constants between the alpha-alkyl hydrogens and the carbonyl carbons. The experimental 3J values have been compared to theoretical values, and the conformational populations ...

Human genetic variation is the incarnation of diverse evolutionary history, which reflects both selectively advantageous and selectively neutral change. In this study, we catalogue structural and functional features of proteins that restrain genetic variation leading to single amino acid substitutions. Our variation dataset is divided into three categories: i) Mendelian ...

An evolutionary scheme is postulated in which a primitive code, involving only guanine and cytosine, would code for glycine (GG), alanine (GC), arginine (CG) and proline (CC). From each of these amino acids and their codons, there evolves a family of related amino acids as the code expands. The four families are: (1)alanine valine, leucine, isoleucine, ...

Pyridoxal 5'-phosphate-dependent aminotransferases reversibly catalyzes the transamination reaction in which the alpha-amino group of amino acid 1 is transferred to the 2-oxo acid of amino acid 2 (usually 2-oxoglutarate) to produce the 2-oxo acid of amino acid 1 and amino ...

The rapid expansion of the oil sands industry has seen a concomitant expansion of the production of associated waste containing toxic naphthenic acids (NAs). Bioremediation of such waste is thus an important goal, but the mechanisms of biodegradation are still poorly understood, despite recent advances. Many oil sands NAs are resistant to biodegradation, and alkyl ...

With comb polymers with different kinds of fluorocarbon side-chains, significant effects of spreading solvents on the monolayers at the air/water interface and the molecular arrangement in the deposited films could be found by the use of trifluoroacetic acid and its mixed solvents with n-hexane, depending on the atoms, fluorine or hydrogen, substituted at ...

advantages in device application, including sensor application1 , state charge separated assemblies for photo voltaics2 and light emitting diodes3 . Polythiophene bearing carboxylic acid and amine side chains can

Perfluoro ionomer membranes are tetrafluoro ethylene-based materials with microheterogeneous structures consisting of a hydrophobic polymer backbone and a hydrophilic side-chain cluster region. Due to the ionomer cluster morphology, these films exhibit un...

... with 4-Amino-4'-Stilbene-Carboxylic Ester Mesogens ... 4'.STILD EN E.CAR BOXYVLIC ESTER 0 ... in dry toluene Was catalyzed by chloroplatinic acid ...

It is well established that the structure of proteins is determined by their amino acid sequences. A hypothesis for the presence of an induction component in the short range interaction that determines protein secondary structure was suggested in 1964 and...

The success of the molecular replacement technique in correctly revealing (1) the amino acid side-chains that are unique to R. sphaeroides and (2) electron densities for the reaction center chromophores proves that the solution is a correct one and that t...

... on individual compounds in the mono- and disubstituted amide series from the C-8 side chain. For ... the L. sericata larvae and the flea. Likewise, amide analogs with terminal, polar functions on the righ...

After treatment with uranyl acetate, fibrils of collagen exhibited a cross-banded structure under the electron microscope. This striation was due to a cross linking of collagen molecules via the side chains of the amino acids. (auth)

... by removing all water and myristate groups. In addition, polar hydrogens were added and the Kollman united-atom charge ... points and 452 side chain contact atoms. In addition, the calculation of ... hyd...

). The one excep� tion is glycine in which the entire side chain is a single hydrogen atom; glycine are of four kinds. Seven are nonpolar: alanine (ala), valine (val), phenylalanine (phe), #12; 2 proline (pro amino acids seek water and are said to be hydrophilic. Glycine falls into a class of its own. 1

Esterification of the trienoic acid with o-xylylene dibromide gave the bis ester that underwent a templated Diels-Alder reaction to afford the macrodiolide stereospecifically in a single step. The synthesis of bistellettadine A was completed in four steps by hydrolysis and side chain elaboration.

Contents: Bromination of N-Methylquinaldinum Iodide; Semisynthetic Penicillins. VIII. Influence of Substituents at apha-Position of the Side Chain on Stability in Acid Media; Viomycin Derivatives. III. Viomycinmethyltetracyclines - Their Preparation and P...

Isotactic polyethylenimines with (S)-benzyl side chains were synthesized from 4-(S)-4-benzyl-2-oxazolines. When ?-ketoacids were subjected to transamination in the presence of this polymer, and a pyridoxamine coenzyme modified with hydrophobic chains, enantioselectivity towards the natural isomer (L>D) were observed, followed by ...

The role of hither-to-fore unrecognized long-range hydrogen bonds between main-chain amide hydrogens and polar side chains on the stability of a well-studied (??)₈, TIM barrel protein, the alpha subunit of tryptophan synthase (?TS), was probed by mutational analysis. The F19�D46 and I97�D124 hydrogen bonds ...

Based on the molecular structural regularity in nucleobases, upon analysing the atomic contents in amino acid side chains together with solid geometrically rearranging a Hamiltonian graph of the genetic code, hidden rotational symmetries inherent in the degeneracy of codons are unraveled. The internal relation of the 20 amino ...

This review correlates the studies (up to 1991) on the isolation, structural determination, biological activity, and synthesis of physiologically active polyoxidised lanosterol derivatives of vegetable (inotodiol, ganoderic acids) and animal (seychellogenin) origin. The cytotoxic, cardiovascular, and other forms of activity of compounds of this type are of considerable ...

The side-chain alkylation of toluene at a 6:1 toluene-methanol ratio and 425/sup 0/C over potassium-exchanged X-zeolite in a flow reactor yielded 7.1% ethylbenzene and 7.4% styrene. Various other potassium-exchanged zeolites were less active. The pulsed reaction of toluene and methanol produced much more styrene than ethylbenzene, which indicated that styrene is a primary ...

The degradation of stain-resistant coating materials leads to the release of biopersistent perfluorooctanoic acid (PFOA) to the environment. In order to find the environmentally friendly substitutes, we have designed and synthesized a series of nonbiopersistant fluorinated polymers containing perfluorobutyl groups in the side chains. ...

A new synthetic strategy to alkylate amino groups under mild conditions has been developed. It utilizes only 4�� molecular sieves as base in order to promote the N-alkylation reaction, in presence of the appropriate alkyl halide. The methodology was validated by the simple and efficient side-chain N-alkylation of o-Ns-protected Fmoc-amino acid. One of ...

The components of anacardic acid, (a mixture of 6-n-C (15) alkylsalicylic acids whose side chains vary in degrees of unsaturation) have been isolated by high pressure liquid chromatography from a crude extract of cashew nut shell, Anacardium occidentale, and tested for toxicity to fresh water snails, Biomphalaria ...

Trihydroxy bile acids with differing nonsterol chain length and charge were synthesized to define the effect of these parameters on the ability to competitively inhibit the Na(+)-dependent uptake of 14C taurocholate into isolated rat hepatocytes. Compounds with long side chains (greater than or equal to 0.8 nm) ...

Hydration of rhamnogalacturonan-I (RG-I) derived from potato cell wall was analyzed by (13)C single-pulse (SP) magic-angle-spinning (MAS) and (13)C cross-polarization (CP) MAS nuclear magnetic resonance (NMR) and supported by (2)H SP/MAS NMR experiments. The study shows that the arabinan side chains hydrate more readily than the galactan ...

The two-site coarse-grained model for the interactions of charged side chains, to be used with our coarse-grained UNRES force field for protein simulations proposed in the accompanying paper, has been extended to pairs of oppositely charged side chains. The potentials of mean force of four pairs of molecules ...

Surface Rheology of Monolayers of Poly(1-alkylene-co-maleic acid) at the Air/Water Interface ABSTRACT: The surface viscoelasticity of poly(1-alkylene-co-maleic acid) (PXcMA) with side chains varying that interactions between the hydrophilic polymer head of maleic acid moiety and the interface ...

Structural and biochemical analyses reveal how ornithine acetyl-transferases catalyse the reversible transfer of an acetyl-group from a basic (ornithine) to an acidic (glutamate) amino acid by employing a common mechanism involving an acetyl-enzyme intermediate but using different side chain binding modes. ...

Chiral imino lactones derived from (R)-phenylglycinol containing an allyl- or propargyltrimethylsilyl group in the side chain readily cyclized in the presence of acidic reagents to afford spirocyclic compounds with high diastereoselectivity. Removal of the chiral auxiliary produced 2-substituted 1-aminocycloalkanecarboxylic ...

Polymers with reactive side chains and narrow molecular weight distributions were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization, and the potential to utilize these polymers to prepare drug carriers was demonstrated. p-Nitrophenyl methacrylate (NPMA) and diethoxypropyl methacrylate (DEPMA) were ...

The synthesis and properties of comb-like copolymers and ionomers derived from renewable resources: itaconic anhydride (ITA), stearyl methacrylate (SM) and lactic acid (LA) are described. The copolymers based on ITA and SM (ITA-SM) were nearly random with a slight alternating tendency. The copolymers exhibited a nanophase-separated morphology, with the stearate ...

The intrinsic conformational biases of individual amino acids and their interstrand side-chain�side-chain (SC�SC) interactions both contribute to the stability of ?-sheets. The relative magnitudes of these effects have been difficult to assess in the context of folded proteins, where tertiary contacts complicate the quantitative analysis of local ...

We studied the electrospray ionization (ESI) of various peptides containing amino acids with acidic side chains to test whether the pattern of molecular ion peaks provides information on the number of acidic side chains. When we increased the ...

Short peptides are important as lead compounds and molecular probes in drug discovery and chemical biology, but their well-known drawbacks, such as high conformational flexibility, protease lability, poor bioavailability and short half-lives in vivo, have prevented their potential from being fully realized. Side chain-to-side chain ...

The standard partial molar volumes (V(0)(2),phi) and coefficients of viscosity (B eta) at 298.15 K for aqueous solutions of amino acids containing hydrophobic and hydrophilic groups have been calculated. Based on the transition state theory of Feakins, the partial molar free energies of activation of the viscous flow of amino acids in water have been ...

A new series of potential GABA uptake inhibitors starting from of 1H-imidazol-4-ylacetic acid with the carboxylic acid side chain originating from different positions and varying in length have been synthesized and tested for the inhibitory potency at the four GABA uptake transporters mGAT1-4 stably expressed in ...

The deletion of the intracellular polyhydroxyalkanoate (PHA) depolymerase gene (phaZ) in Pseudomonas fluorescens BM07 was found to increase more efficiently the levels of longer medium-chain-length (MCL) omega-aromatic monomer-units than in the wild-type strain when the cells were grown with a mixture of fructose and MCL omega-aromatic fatty acid in the ...

Ion transport through perfluorosulfonic acid ionomers such as Nafion{reg_sign} is controlled by both the microstructure of the polymer and the charge and water distribution in the hydrated polymer. The authors present here the results of theoretical calculations on the side chain of Nafion{reg_sign}, establishing microscopic ...

Strong liquid-crystalline polymeric (LCP) compositions of matter. LCP backbones are combined with liquid crystalline (LC) side chains in a manner which maximizes molecular ordering through interdigitation of the side chains, thereby yielding materials which are predicted to have superior mechanical properties over ...

Strong liquid-crystalline polymeric (LCP) compositions of matter are described. LCP backbones are combined with liquid crystalline (LC) side chains in a manner which maximizes molecular ordering through interdigitation of the side chains, thereby yielding materials which are predicted to have superior mechanical ...