Methacrylonitrile - vinylidene cyanide

Methacrylonitrile-vinylidene Cyanide (MAA-VCN) and Cyano-vinyl Acetate-vinylidene Cyanide (CVA-VCN)... 

Only a small percent of styrene copolymers reported in the literature achieved industrial importance. Some of the interesting copolymers of styrene that were reported but not utilized commercially are copolymers with various unsaturated nitriles. This includes vinylidene cyanide, fumaronitrile, malononitrile, methacrylonitrile, acrylonitrile, and cinnamonitrile [292]. Often, copolymerization of styrene with nitriles yields copolymers with higher heat distortion temperature, higher tensiles, better craze resistance, and higher percent elongation. 

Random copolymers based on acrylonitrile and methacrylonitrile with ethyl a-acetoxyacrylate [69] were synthesized by radical copolymerization. The microstructure of the resulting copolymers was characterized by C NMR spectroscopy, and some reactivity ratios could be assessed. In addition, copolymers based on methyl vinylidene cyanide (MVCN) and vinyl acetate [70], styrene [71], or substituted styrene also exhibit interesting dielectric behavior [72]. 

To develop dielectric polymers with C-CN and C-F groups, the syntheses of poly(vinylidene fluoride)-h-poly(AN, MAN, VCN) (PVDF-h-PMcN) block copolymers (Scheme 20.8), using the iodine transfer polymerization (ITP) of acrylonitrile (AN), methacrylonitrile (MAN), and vinylidene cyanide (VCN), in the presence of PVDF-1, was reported. In a first step, the ITP of vinylidene fluoride (or 1,1-difluoroethylene, VDF) with C6F13I initiated by tcrt-butyl peroxypivalate (TBPPI)... 

Vinylidene cyanide-methacrylonitrile-cyanovinyl acetate NMR Sequence distribution [244]... 

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