Glycidyl acrylate polymer

K. Allmer, A. Hult, and B. Ranby, Surface modification of polymers. II. Grafting with glycidyl acrylates... 

Hawker et al. prepared the 1-phenylethyl adduct of BPPN, i.e., 2,2,5-trime-thyl-3-(l-phenylethoxy)-4-phenyl-3-azahexane, (TMPAH, Fig. 13) and found that it was useful for the controlled homopolymerizations of St, nBA, acrylonitrile, and N,N-dimethylacrylamide [71]. For example, the homopolymerization of DMA resulted in polymers with Mn=4000-55,000 with Mw/Mn=l.15-1.21. TMPAH was also used to prepare random copolymers containing St or nBA and the above monomers, in addition to copolymers with MMA, acrylic acid, 2-hy-droxyethyl acrylate (HEA),and glycidyl acrylate. As with DEPN, it was necessary to add the free nitroxide to mediate the polymerization rate, but the resulting... 

A wide range of acrylates with various side chains have been polymerized using ATRP to obtain well-de ned functional polymers, e.g., ATRP of 2-hydroxyethyl acrylate, glycidyl acrylate, and tert-butyl acrylate (yielding well-de ned poly(acrylic acid) on hydrolysis). Among several transition metal catalysts, viz., copper, ruthenium, and iron-based systems, which have been successfully used for the controlled ATRP of acrylates, copper appears to be superior in producing well-de ned polyacrylates with low polydispersities. 

Various approaches have been undertaken for reactive compatibilization of poly-amide/ABS alloys. Maleic anhydride can be grafted to the ABS. Styrene maleic anhydride (SMA) copolymers have been employed as compatibilizers for polyamide/ABS blends. SMA and SAN copolymers are miscible when the AN and maleic anhydride (MA) contents are equal. The impact strength of these blends has been found to be sensitive to the amount and composition of the SMA copolymer. Addition of SMA to SAN/polyamide blends was found to enhance the tensile and impact properties of these blends. Imidized acrylic polymers have been used as compatibilizers for nylon-6/ABS blends. Glycidyl methacrylate and methyl methacrylate (GMA/MMA) copolymers are used as compatibilizing agents. The epoxide functionality in GMA is capable of reaction with polyamide end groups. GMA/MMA copolymers can be shown to be miscible with SAN over the range of AN content of ABS. Styrene/GMA copolymers have been reported to be used as compatibilizers for polymer pairs such as... 

Glycidyl acrylates and methacrylate are generally used to introduce epoxy groups into the polymer ... 

Other polymers on which branching studies have been conducted include ethylene-propylene copolymers, polypropylene oxide [84-86], polyalkylvinyl esters [87, 88-92], PVC [93-97], ethylene-2 chloroacrylate copolymers [98], ethylene glycidyl-acrylate copolymers [99], poly-tf<2us,l,3-pentadiene [93], poly-e-caprolactone [94], polytetra-methylene oxide [95], copoly-2-vinyl-naphthalene methylmaleate [96], 2-vinyl naphthalene-4,4-methacrylate [96], polymethylmethacrylate [97], poly tert-butyl acrylate [97] and polychloroprene [100]. 

Resin and Polymer Solvent. Dimethylacetamide is an exceUent solvent for synthetic and natural resins. It readily dissolves vinyl polymers, acrylates, ceUulose derivatives, styrene polymers, and linear polyesters. Because of its high polarity, DMAC has been found particularly useful as a solvent for polyacrylonitrile, its copolymers, and interpolymers. Copolymers containing at least 85% acrylonitrile dissolve ia DMAC to form solutions suitable for the production of films and yams (9). DMAC is reportedly an exceUent solvent for the copolymers of acrylonitrile and vinyl formate (10), vinylpyridine (11), or aUyl glycidyl ether (12). 

Hoffman and his coworkers have done a lot of work on the apphcation of radiation-induced graft polymerization for medical apphcation. The hydrophilic polymers that have been used for radiation-induced grafting are Al-vinyl pyrohdone (NVP), 2-hydroxyethyl methacrylate (HEMA), acrylamide (AAm), acrylic acid (AAc), glycidyl methacrylate (GMA), ethyleneglycol dimethacrylate (EGDMA), and ethyl methacrylate (EMA) onto sihcone rubber were widely smdied. 

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