Poly acrylamide grafted

Figure 6.11 Proposed mechanism for the HRP-initiated poly(acrylamide)-grafting of starch [39].

Kajjari, P B., Manjeshwar L. S., andAminabhavi, T. M. Novel interpenetrating polymer network hydrogel microspheres of chitosan and poly(acrylamide)-grafted-guar gum for controlled release of ciprofloxacin. Ind. Eng. Chem. Res., 50, 13280-13287 (2011). 

Cross-linked poly(acrylamide)-graft-guar gum... 

Figure 1. Representative ATR-FTIR spectra of poly(acrylamide)-grafted melt processed films (a) PLA, (b) Blend (90 wt% PLA), and (c) PHA. Spectrum (a) shows the ester peak of PLA at 1756 cm ( ).Spectrum (c) shows the ester peak of PHA at 1721 cm" ( ). Spectra (a-c) all show the peak at 1654 cm" ( ) representing amide peak .

After grafting with AM the Nls peak appears, the Cls peak has only one side peak (C=0) at about 286 eV and the Ols peak is dominated by 0(C=0) which indicates an almost complete cover of grafted poly(acrylamide) chains 4 CH2-CH(CO-NH2) n The grafting kinetics (Figure 11) is similar to that ot PE and PP substrates (comp. Figure... 

Fig. 14. Hyperbranched polymer grafts prepared on a mercaptoundecanoic acid (MUA) self assembled monolayer confined to a gold substrate. PAAM-c-PAA represents a random copolymer of poly(acrylamide) and poly(acrylic acid) prepared from the poly(acrylic acid) carboxylic acid groups and an amine [129]...

Surface-initiated ATRP was applied not only on planer substrates but also on various kinds of flne particles. The latter systems will be reviewed separately in Sect. 5.1. Porous materials are also fascinating targets for chromatographic application making use of the unique structure and properties of high-density polymer brushes. Wirth et al. were the first to report the grafting of poly(acrylamide) (PAAm) on a porous silica gel [109,110]. 

T.M. Aminabhavi, H.G. Naik, Synthesis of graft copolymeric membranes of poly(vinyl alcohol) and poly(acrylamide) for the pervaporation separation of water/acetic acid mixtures, J. Appl. Polym. Sci. 83 (2002) 244-258. 

Base polymer Starch—graft copolymerization, carboxymethylation Cellulose—graft copolymerization, carboxymethylation Synthetic polymers—poly(acrylate), poly(vinyl alcohol), poly(acrylamide), poly(oxyethylene), cationic polymer... 

By irradiation of natural rubber containing benzophenone, and in contact with aqueous acrylamide, Osier and Shibata 12> showed that grafts of poly(acrylamide) could be formed along the rubber backbone chain. 

General [13,16, 20, 22] Mediator-free [28] Various [i-di kelone mediators [25] Immobilized enzyme [38] Water in SCC02 polymerizations [19] Surfactants [21] Poly acrylamide starch graft polymers[39[. 

Furthermore, the more there is of the branched base of the polysaccharide, the greater the opportunity the grafted (onto polysaccharide backbone) poly-acrylamide/cationic moiety chain will have to form an aggregate of the contaminants. Thus, if the grafted moiety is loaded onto the most hyperbranched polysaccharides, it will have easier accessibility to form aggregates of the contaminants, providing the best flocculation characteristics. 

Various modified forms of Cassia tora seed gum (e.g. carbamoylethyl Cassia tora gum (CB-CTG), cyanoethyl Cassia tora gum (CE-CTG), carboxymethyl Cassia tora gum (CM-CTG), quatemized Cassia tora gum (Q-CTG), acrylamide grafted Cassia tora gum (CTG-g-AA), and acrylonitrile grafted Cassia tora gum (CTG-g-AN) [79-85] have been tested against kaolin under laboratory conditions vis-a-vis poly(acrylamide) based synthetic flocculants. 

L12 Liu, R., DeLeonardis, P., Cellesi, F., Tirelli, N., and Saunders, B.R., Cationic temperature-responsive poly(A/-isopropyl acrylamide) graft copolymers From triggered association to gelation, Langmuir, 24, 7099,2008. 

Figure 12-10. Oxygen binding for cyclohexene oxidation in the presence of Co-containing catalysts (333 K, without solvent). (1) Co(AcAc)2, (2) polyethylene-grafted -poly(cobalt acrylate), (3) copolymer of styrene with cobalt acrylate, (4), polyethylene-grafted -poly(acrylamide -Co(II)),...

In many of the surfactant-free polymerizations water-soluble polymers are gloated in situ which are either grafted on to the latex particle surface or strongly adsorbed. The use of acrylamide in surfactant-free polymerization is well known and with vinyl chloride polymerization the poly(acrylamide) formed in the water phase was shown to graft on to poly(vinyl chloride) in the particle, contributing to an increased stability [93]. Poly(vinyl alcohol). PVA,... 

Huang and co-workers " prepared dithiobenzoate-immobilized SWCNTs (macroCTA-3) through an alternative reaction route as shown in Scheme 5.5, and then enwrapped the SWCNTs covalently with water-soluble poly(acrylamide) by RAFT polymerization in benzene at 60 °C. The grafted poly(acrylamide) amount increased linearly with the reaction time, and rose from 46.3 to 77.9 wt% when the polymerization time was prolonged from 12 to 50 h. 

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