Thermal analysis of solution copolymers of styrene with N-phenylmaleimide

被引:27
作者
Liu, GD [1 ]
Li, XC
Zhang, LC
Qu, XW
Liu, PG
Yang, LT
Gao, JG
机构
[1] Hebei Univ Technol, Sch Chem Engn, Inst Polymer Sci & Engn, Tianjin 300130, Peoples R China
[2] Hebei Univ, Dept Chem, Baoding 071002, Peoples R China
关键词
thermal analysis; styrene; N-phenylmaleimide; solution polymerization;
D O I
10.1002/app.10065
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Free-radical-initiated copolymerization of N-phenylmaleimide (NPMI) with styrene (St) at 110 degreesC in a toluene solution initiated by AIBN was carried out by a semibatch method. The compositions of the copolymers were determined by using an elemental analyzer. The glass-transition temperatures of the copolymers were measured by differential scanning calorimetry. All the semibatch copolymers show a single glass-transition temperature that increases markedly with increasing NPMI content in the copolymers. The thermal stabilities of the copolymers were studied by using a programmed thermogravimetric analysis technique. Copolymers show a considerable increase in thermal stability and different degradation reaction mechanisms with increasing content of NPMI. (C) 2002 John Wiley & Sons, Inc.
引用
收藏
页码:417 / 422
页数:6
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