INTERSEQUENCE CYCLIZATION IN METHYL METHACRYLATE-VINYL CHLORIDE-STYRENE TERPOLYMERS

被引:15
作者
JOHNSTON, NW
HARWOOD, HJ
机构
[1] Institute of Polymer Science, University of Akron, Akron
关键词
D O I
10.1021/ma60009a001
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Quantitative studies on the extent of intersequence cyclization that occurs between vinyl chloride and methyl methacrylate units in methyl methacrylate-vinyl chloride-styrene terpolymers are described. The extents of cyclization obtained in these studies are in very good agreement with those calculated using statistical relationships developed previously. A method for determining one pair of monomer reactivity ratios from terpolymerization data and two known pairs of monomer reactivity ratios is described. Reactivity ratios determined for the styrene-vinyl chloride system by this approach are in good agreement with values obtained by the conventional copolymerization approach. The results obtained in this study provide evidence for the validity of using binary reactivity ratios in terpolymerization calculations. © 1969, American Chemical Society. All rights reserved.
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页码:221 / &
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