RADICAL POLYMERIZATION OF ACRYLONITRILE INITIATED BY ALPHA-PICOLINIUM P-CHLOROPHENACYLID

被引：0
|
作者：
DIXIT, A
MALIK, S
KATIYAR, SS
机构：
[1] INDIAN INST TECHNOL,DEPT CHEM,KANPUR 208016,UTTAR PRADESH,INDIA
[2] ANDMM COLL,DEPT CHEM,KANPUR,UTTAR PRADESH,INDIA
来源：
POLYMER INTERNATIONAL | 1995年 / 37卷 / 04期
关键词：
ACRYLONITRILE; NITROGEN YLID; KINETICS; POLYMERIZATION;
D O I：
10.1002/pi.1995.210370407
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The radical polymerization of acrylonitrile (AN) with alpha-picolinium p-chlorophenacylid (alpha-PCPY) as initiator using carbon tetrachloride as inert solvent was investigated at 50 degrees C. The polymerization follows ideal kinetics: the exponent values calculated for the initiator and monomer were found to be 0.5 and unity, respectively. A free radical mechanism with bimolecular termination was confirmed by the inhibiting effect of hydroquinone, a radical quencher. The rate of polymerization was a direct function of initiator (alpha-PCPY) concentration, monomer (AN) concentration and temperature. The overall activation energy calculated was 56 kJ/mol. The polymerization was favoured by polar solvents and retarded by non-polar solvents.
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页码：287 / 290
页数：4
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