Miscellaneous Copolymers

Pyrolysis gas chromatography and IR spectroscopy have been used to determine vinyl groups in ethylene-vinyl acetate copolymers [100]. 

ESR spectroscopy has been applied to studies of unsaturation and other structural features in a wide range of homopolymers including polyethylene [101-110], polypropylene [111-121], polybutenes [115], polystyrene [122-124], PVC [125,126], polyvinylidene chloride [127], polymethylmethacrylate [128-137], polyethylene glycol polycarbonates [137-140], polyacrylic acid [136-139, 141, 142], polyphenylenes [143], polyphenylene oxides [143], polybutadiene [144], conjugated dienes [145,146], polyester resins [146], cellophane [143,147] and also to various copolymers including styrene grafted polypropylene [148], ethylene-acroline [149], butadiene-isobutylene [150], vinyl acetate copolymers [151] and vinyl chloride-propylene. 

Other applications of Py-GC include studies on polyester urethane [69], natural rubber and styrene butadiene rubbers [70, 71], ST-DVB [72], polyhexafluoropropylene-vinylidene fluoride [62], acrylic and methacrylic acid [72], PE-ethyl acrylate and PE-vinyl acetate [53], and MMA-ethyl acrylate copolymers [73]. 

Tsuge and H. Ohtani, Pyrolysis Gas Chromatography of High Polymers Fundamentals and Data Compilation, Techno System, Tokyo, Japan, 1989. 

Uchino, K. Nakahashi and X. Jin, Analytical Science, 

O Mara, Journal of Polymer Science Part A-1 Polymer Chemistry, 1970, 8, 7, 1887. 

Roussis and J.W Fedora, Rapid Communications in Mass Spectrometry, 1996,10,1, 82. 

Tanaka and T. Morikawa, Koygu Kagaku (Osaka), 1974, 48, 387. [Chemical Abstracts, 82, 98702W] 

Thermal copolymer studies include work on styrene-ethylene [34-36], styrene-vinyl cyclohexane [37] and propene-pentene [38]. 

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Miscellaneous Copolymers. VP has been employed as a termonomer with various acryUc monomer—monomer combinations, especially to afford resins usehil as hair fixatives. Because of major differences in reactivity, VP can be copolymerized with alpha-olefins, but the products are actually PVP grafted with olefin or olefin oligomers (151,152). Likewise styrene can be polymerized in the presence of PVP and the resulting dispersion is unusually stable, suggesting that this added resistance to separation is caused by some grafting of styrene onto PVP (153). The Hterature contains innumerable references to other copolymers but at present (ca 1997), those reviewed in this article are the only ones known to have commercial significance. 

Miscellaneous Copolymers. VP has been employed as a termonomer with various acrylic monomer—monomer combinations, especially to afford resins useful as hair fixatives. 

Uses General purpose antifoam/defoamer containing very small amt. of silicone for inks, adhesives and coatings suitable for SBU, PVA, F /E, polyethylene, and miscellaneous copolymers Foamkill 614NS [Crucible]... 

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