STUDIES ON POLYMERIZATION OF N-(SUBSTITUTE D) MALEIMIDES .7. POLYMERIZATIONS AND COPOLYMERIZATIONS OF MALEIMIDEMETHYL ESTERS

被引:16
作者
OISHI, T [1 ]
ISHIKAWA, T [1 ]
KIMURA, T [1 ]
机构
[1] YAMAGUCHI UNIV,FAC ENGN,DEPT IND CHEM,UBE,YAMAGUCHI 755,JAPAN
关键词
Methyl Methacrylate; Monomer Reactivity Ratio; N-Acetoxymethylmaleimide; N-Benzoyloxymethylmaleimide; N-iso-butyryloxymethylmaleimide; N-Propionyloxymethylmaleimide; Q; e Value;
D O I
10.1295/koron.36.751
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Homopolymerization and copolymerization of N-acetoxymethylmaleimide (I), N-propionyloxymethylmaleimide (II), N-isobutyryloxymethylmaleimide (III), and N-benzoyloxymethylmaleimide (IV) were carried out at 60°C by using azobisisobutyronitrile (V) as an initiator in tetrahydrofuran. The initial rate of the polymerization was expressed by the equation Rp=k[I]2.9[V]0.57, where k is rate constant. The overall activation energy and frequency factor measured were 23.7 kcal/mol and 2.8•~1012s-1, respectively, for I. The reactivity ratios were determined as r1=0.049, r2=1.46; r1=0.095, r2=1.44; r1=0.031, r2=1.71; r1=0.083, r20.79 for the copolymerizations of I, II, III, and IV (M1) with methyl methacrylate (M2), respectively. The Q and e values calculated from these reactivity ratios were Q=0.96, e=2.02 for I; Q=0.89, e=1.81 for II; Q=1.18, e=2.11 for III; Q=1.81, e=2.05 for IV. © 1979, The Society of Polymer Science, Japan. All rights reserved.
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页码:751 / 758
页数:8
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