MELT POLYMERIZATION OF HEXACHLOROCYCLOTRIPHOSPHAZENE IN THE PRESENCE OF ORGANOTIN(IV) COMPOUNDS

被引：7

作者：

CHO, YH

SOHN, YS

JUN, MJ

机构：

[1] KOREA INST SCI & TECHNOL,INORGAN CHEM LAB,SEOUL 130650,SOUTH KOREA

[2] YONSEI UNIV,DEPT CHEM,SEOUL 120749,SOUTH KOREA

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1993年 / 31卷 / 13期

关键词：

MELT POLYMERIZATION; THERMAL POLYMERIZATION; HEXACHLOROCYCLOTRIPHOSPHAZENE; POLY(DICHLOROPHOSPHAZENE); ORGANOTIN(IV) COMPOUNDS;

D O I：

10.1002/pola.1993.080311328

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 melt polymerization of hexachlorocyclotriphosphazene to poly (dichlorophosphazene) has been studied in the presence of organotin (IV) compounds. Unlike other typical Lewis acids, diethyltin(IV) chloride, Et2SnCl2, has shown to be an inhibitor for the thermal polymerization of the trimer, raising the activation energy to 70 kcal/mol. Diethyltin (IV) chloride remarkably delayed the rate of polymerization and efficiently inhibited the cross-linking reaction, thus leading to an improvement in the yield of the linear polymer without sacrifice to its molecular weight. (C) 1993 John Wiley & Sons, Inc.

引用

页码：3397 / 3403

页数：7

共 28 条

[1] .21. SERIES ON PHOSPHORUS-NITROGEN COMPOUNDS - POLYMERIZATION OF HEXACHLOROCYCLOTRIPHOSPHAZENE - ROLE OF PHOSPHORUS-PENTACHLORIDE, WATER, AND HYDROGEN-CHLORIDE [J].