Copolymerization of vinylene carbonate

Wiley - Tập 27 Số 115 - Trang 275-283 - 1958
Koichiro Hayashi1, G. Smets1
1Laboratoire de Chimie Macromoléculaire, Louvain/Belgium

Tóm tắt

AbstractThe copolymerization of vinylene carbonate VC (M2) with several vinyl monomers (M1) has been examined. The reactivity ratios r2 and r1 have been determined in the system VC‐vinyl acetate (0.27 and 3.0), VC‐vinyl chloride (0.09 and 5.2), VC‐vinylpyrrolidone (0.4 and 0.7), VC‐methyl methacrylate (<0.01 and ∼70). These values indicate for vinylene carbonate in the Alfrey‐Price scheme a reactivity Q equal to 0.012 and a polarity e of −0.6. From the r1 and r2 parameters of the system vinyl acetatevinylpyrrolidone (0.38 and 0.44, respectively) the Q and e values of vinylpyrrolidone have also been determined: Q = 0.11 and e = −1.6. The copolymers of vinylene carbonate and vinyl acetate yield on hydrolysis polyalcohols (CH2CHOH)x(CHOH)y of which the solubility decreases with increasing content of hydroxyl groups.

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Tài liệu tham khảo

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Thông tin xuất bản

Wiley

Tập 27 Số 115

275-283

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