CATALYZED NUCLEATION OF POLY(VINYL CHLORIDE)

被引：3

作者：

DOBREVA, A ^{[1
]}

GANTCHEVA, T ^{[1
]}

GUTZOW, I ^{[1
]}

机构：

[1] HIGHER INST MECH & ELECT ENGN,BU-1156 SOFIA,BULGARIA

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 1992年 / 27卷 / 06期

关键词：

D O I：

10.1002/crat.2170270602

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Microscopically visible crystallization in a typical non-crystallizing organic polymer - poly(vinyl chloride) (PVC) is achieved by dissolving it in an appropriate solvent (cyclohexanone) and inducing the nucleation by introducing various insoluble crystallization cores - microcrystals of noble metals (Au, Pd, Pt, Rh, Ir, Ru, Os). It is established that the higher the melting temperature of the metal the higher its activity as a crystallization core in the heterogeneous nucleation of PVC. The reverse process-oriented crystallization of a foreign substance - NaCl crystals on PVC films is also demonstrated. This result gives an indication of precrystalline structures in seemingly amorphous PVC films.

引用

页码：743 / 748

页数：6

共 11 条

[1]

CLARK R, 1961, J POLYM SCI, V51, P971

[2] INDUCED CRYSTALLIZATION OF GLASS-FORMING SYSTEMS - A CASE OF TRANSIENT HETEROGENEOUS NUCLEATION .2. [J].