PREPARATION OF SMALL POLY(BUTYLENE TEREPHTHALATE) SPHERES BY CRYSTALLIZATION FROM SOLUTION

被引：20

作者：

NICHOLS, ME ^{[1
]}

ROBERTSON, RE ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT MAT SCI & ENGN,ANN ARBOR,MI 48109

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1994年 / 32卷 / 03期

关键词：

CRYSTALLIZATION; NUCLEATION; SPHERULITES; LIQUID LIQUID PHASE SEPARATION;

D O I：

10.1002/polb.1994.090320319

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 crystallization of poly (butylene terephthalate) (PBT) from moderately dilute solutions of PBT in a diglycidyl ether of bisphenol-A epoxy has been investigated. PBT dissolves in this epoxy approximately 35-degrees-C below its usual melting temperature of 227-degrees-C to form a one-phase solution. Cooling this solution below 165-degrees-C leads to rapid crystallization of the PBT. The resulting mixture of liquid epoxy and crystalline PBT has a low viscosity and contains highly birefringent, individual PBT spherulites. The PBT spherulites have a narrow size distribution and a high surface-to-volume ratio. These particles are suggested to arise from a rapid crystallization that follows liquid-liquid phase separation. (C) 1994 John Wiley & Sons, Inc.

引用

页码：573 / 577

页数：5

共 17 条

[1] POLYMER-POLYMER PHASE-BEHAVIOR [J].