Polyallylamine hydrochloride

Serizawa and Akashi [95] analyzed the monolayer adsorption of polystyrene latex particles with cationic polyvinylamine grafted on their surface, while Serizawa et al. [96,97] used commercial anionic latex particles. Both types of particles were adsorbed on polyelectrolyte-coated substrates previously prepared by alternating adsorption of cationic and anionic polyelectrolytes such as polyallylamine hydrochloride (PAH) and polystyrene sulfonate sodium salt (PSS) according to the method described by Decher [164]. Using... 

In the presence of the polyelectrolyte polyallylamine hydrochloride (PAAN), the formation of a pearl-necklace structure between AOT-reversed micelles and PAAN was... 

Recently, polymerization of sodium acrylate on polyallylamine hydrochloride template was described. In aqueous solution, sodium acrylate molecules are adsorbed onto a template with ammonium cationic pendant groups. The complex was polymerized in water solution using AIBN or K2S2O8 as initiators. Polymerization proceeds according to reaction ... 

We used polyelectrolyte multilayer formed from polyallylamine hydrochloride (PAH) and PSS successfully for templating deposition of colloidal particles, as displayed in Fig. 12. The wavelength of the wrinkles was adjusted by the number of polyelectrolyte deposition cycles and, accordingly, single lines of particles or double lines, as well as other geometries, could be achieved [70],... 

PMMA itself does not possess ready-to-use fiinctional groups for covalent binding with biological molecules. The amine-terminated PMMA were often produced by immersing the freshly cleaned PMMA substrate into a 1.0 M ethylenediamine in dimethyl sulfoxide (DMSO) solution for 15 min at room temperature (115) or coated with a thin layer of polyethyleneimine (PEI) or polyallylamine hydrochloride (PAH). This was first treated in 1 N sodium hydroxide (NaOH) solution at 55 C for 30 min and then immersed in a PEI or PAH solution (0.2%, pH 7) at room temperature for 1 h (117). Tsai and Lin (2005) demonstrated that PEI-derivatized PMMA was used for the determination of alpha-fetoprotein by quartz crystal microbalance (QCM) (118). Furthermore, the amine-terminated PMMA could be generated by reacting with 10% hexamethylene diamine (HMD) (reaction shown in scheme 8.2) or 1,3-diaminopropane (DAP) in 100 mM borate buffer pH 11.5 for 2 h (119) or exposing to -lithioethylenediamine (120) (reaction shown in scheme 8.3). 

Capsule Permeability The most widely characterized polyelec-trol3 es in the formation of hollow capsules have been alternating layers of polystyrenesulphonate (PSS, negative) and polyallylamine hydrochloride (PAH, positive), and therefore the following permeability discussion will be based on that system. (PAH/PSS) will refer to a film of n bilayers. 

NR-polyeth- ylenimine/ polyallylamine hydrochloride Layer-by-layer technique Tissue engineering AFM and SEM morphology characterizing in vitro normal human fibroblast cell growth evaluation [91]... 

It has been shown [17] that the removal of the excess cationic polyelectrolyte led to a somewhat greater adsorption of complexes of polyallylamine hydrochloride (PAH) and polyacryhc acid (PAA) onto Si02 surfaces in water, with a net cationic charge and a degree of neutralization of 0.8, since the excess PAH diffused more rapidly to the surface and was adsorbed before the larger colloidal complexes could be adsorbed. When the PAH was removed, the complex adsorption dominated and the adsorbed amount thus increased. Similar results were found for the adsorption of cationic lattices onto cellulose fibres with an excess of cationic polyelectrolyte in solution [18], where it was found that a large excess of the cationic polyelectrolyte severely affected the amount adsorbed. Both these results show that the amount of free cationic polyelectrolyte in solution must be controlled in order to safely elucidate the mechanisms behind the adsorption of PEC onto any surface. 

APTMOS 3-amino-propyl-trimethoxysilane, AuHFA fluoroalcohol-coated gold nanospheres, BBCB bisbenzocy-clobutene, BCB benzocyclobutene, CA cellulose acetate, CAB cellulose acetate-butyrate, CEE chloroethyl ether, DIMP diisopropyl methylphosphonate, DMMP dimethyl methylphosphonate, EPR epoxidized novolac, IPA isopropanol, OV-225 cyanopropyl methyl phenylmethyl silicone, OV-275 dicyanoallyl sihcone, PAAM polyallylamine hydrochloride, PAPPS propylaminopropyl polysiloxane, PDMS poly(dimethylsiloxane), PECH polyepichlorohydrin, PEG polyethylene glycol, PEI polyethyleneimine, PEO polyethylene oxide, PEVA polyethylene-co-vinyl acetate, PEUT poly(ether urethane), PHEMA poly(2-hydroxyethyl methacrylate), PIB polyisobutylene, PMMA poly(methyl methacrylate), PTMOS propyltrimethoxysilane, PVA polyvinyl alcohol, PVP polyvinylpyrrolidone, SXFA siloxanefluoroalcohol... 

Reaction of the hydrochloride derivative of the PEI fraction of a MW of 1800 liberated 94% of the anticipated hydrogen within a few hours. In contrast with this the 10000 MW fraction produced only 86% of the theoretical amount of H2. These two materials were obtained as free flowing powders after solvent evaporation which retained the sodium chloride by-product. Attempts to separate the salt by ultrafiltration or dialysis were partially effective because the polymers behaved as ion exchangers and retained chloride ions. An alternate synthetic approach to the cyanoborane derivatives which would not produce salt as a byproduct was explored. In this case, previously formed pyridine.BH2CN was used in a transamination reaction with neutral PEI producing a derivative that showed 59% derivatization. Attempts to derivatize polyallylamine hydrochloride, PAA, by reaction with NaBH3CN failed even in boiling water under reflux. Apparently this marked difference with PEI stems from differences in pKa values of the two hydrochlorides which was measured to be about 5.0 for PEI and 7.0 for PAA. 

Cassagneau, T., Fendler, J. H. and Mallouk, T. E., Optical and electrical characterizations of ultrathin films self-assembled from 11-aminoundecanoic acid capped Ti02 nanoparticles and polyallylamine hydrochloride, Langmuir, 16, 241-246 (2000). 

Burke, S.E., Barrett, C.J. Swelling behavior of hyaluronic acid/polyallylamine hydrochloride multilayer films. Biomacromolecules 6, 1419-1428 (2005)... 

Johansson, E., Blomberg, E., Lingstrom, R., Wagberg, L. Adhesive interaction between polyeleetrolyte multilayers of polyallylamine hydrochloride and polyacrylic acid studied using atomic force microscopy and surface force apparatus. Langmuir 25,2887-2894 (2009)... 

This deposition method allows the assembly of materials of different functionalities into a single film without phase separation issues. Layer-by-layer assembly works well with PEDOT-S sodium salt as the polyanion combined polyallylamine hydrochloride (PAI)278-28o well as PEDOTiPSS as the polyanion combined with linear poly(ethyleneimine) (LPEI), polyaniline and viologen polymers as polycations. In layer-by-layer assemblies of PEDOTPSS with a viologen polymer it was clearly shown that both redox steps, the redox step from the PEDOT main chain and the redox step from the viologen, occur successively and not simultaneously. 

Electrostatic Polyfstyrene sulfonate), polyallylamine hydrochloride, poly (diallyldimethyl ammonium chloride), polyethyleneimine, Nafion/Fe, poly (4-vinylpyridine), poly (acrylic acid), poly (methacrylic acid), poly (hydroxypropyl methacrylamide), polyferrocenylsillane [sulfonate] Poly(L-aspartic acid), poly(L-lysine) [imine formation], poly (L-arginine), albumin, protamine, silk proteins Dextran [sulfate], chitosan [quatemazied, sulfate], hyaluronic acid, alginate... 

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