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.

引用

页码：287 / 290

页数：4

共 46 条

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