Copolymers, graft methacrylates

Similar grafting experiments by the emulsion technique were described (34) in the system vinyl chloride/copolymer butyl methacrylate-methacrylic acid and in the reverse system, and also in the system styrene/polyvinyl chloride. In this last case again as in homogenous medium, the inverse process failed (vinyl chloride on polystyrene). Grafted acrylonitrile copolymers were also prepared in order to improve their dyeability, by polymerizing acrylonitrile in emulsion in the presence of many different polymers as polyvinyl alcohol, polymethacrylamide and polyvinylpyrrolidone (119, 120, 121), polyvinyl acetate and polyacrylic acid (115), wool (224,225), proteins (136), etc. 

In the mid to late 1990s, Mimotopes was producing rigid injection molded polypropylene devices that were surface grafted with either a hydrophilic copolymer of methacrylic acid/dimethyl acrylamide or the relatively hydrophobic polystyrene.12 The polymer was then suitably deriva-tized to allow the incorporation of a linker system. In contrast to the various commercial resins available at the time, the Crown was a macroscopic, quantized solid phase. As shown in Fig. 2, the Crowns were typically fitted to a polypropylene stem, which in turn could be fitted into a... 

Transparent, Impact-Resistant, Styrene/ Methyl Methacrylate Copolymer Grafted onto Polybutadiene... 

X. Dong, G. Geuskens, and C. A. Wilkie, Graft copolymers of methacrylic acid and SBS and K-Resin by the... 

Styrene and acrylonitrile copolymer Styrene, butadiene and styrene copolymer Styrene, ethylene, butylenes and styrene copolymer Styrene, ethylene, butylenes and styrene copolymer grafted with glycidyl methacrylate Styrene, ethylene, butylenes and styrene copolymer grafted with maleic anhydride Styrene maleic anhydride Syndiotactic polystyrene... 

The Mayes group directly synthesized the graft copolymer of methacrylates from polyvinylidene fluoride (PVDF) via ATRP using secondary fluorine as the initiator [52]. 

Acid functionalized epoxy resins are generally prepared by esterification of epoxy resin with an excess of acid equivalents, or by grafting of acrylic copolymers containing methacrylic acid or acrylic acid onto the epoxy backbone. They are generally cured by an aminoplast at elevated temperature. 

Styrene-co-MA has been converted to a partial perester in acetone solution, using tert-huiyX hydroperoxide and pyridine catalyst.The partial peresters were used to initiate methyl methacrylate polymerization by a thermal mechanism in a homogeneous acetone solution. The method provided both homopolymer and graft copolymer. Grafting of methyl methacrylate or styrene-co-MA was also achieved with tert-h xiy hydroperoxide initiator. However, grafting by transfer was substantially less than grafting by the perester technique. Partially neutralized styrene-co-MA has also grafted with acrylonitrile in aqueous solution by a redox initiation procedure. 

Ethylene-propylene copolymers grafted with glycidyl methacrylates... 

Sadeghl M, Heidari B (2011). Crosslinked graft copolymer of methacrylic acid and gelatin as a novel hydrogel with pH-responsiveness properties. Materials, 4,543-552. 

Figure 9.17 Plot of log [i ]M versus retention volume for various polymers, showing how different systems are represented by a single calibration curve when data are represented in this manner. The polymers used include linear and branched polystyrene, poly(methyl methacrylate), poly(vinyl chloride), poly(phenyl siloxane), polybutadiene, and branched, block, and graft copolymers of styrene and methyl methacrylate. [From Z. Grubisec, P. Rempp, and H. Benoit, Polym. Lett. 5 753 (1967), used with permission of Wiley.]...

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