ISOTHERMAL CRYSTALLIZATION OF ISOTACTIC POLYPROPYLENE IN DOTRIACONTANE .1. EFFECT OF NUCLEATING-AGENT ADDITION ON OVERALL CRYSTALLIZATION KINETICS

被引：44

作者：

LIM, GBA

LLOYD, DR

机构：

[1] Department of Chemical Engineering, Center for Polymer Research, University of Texas at Austin, Austin, Texas

来源：

POLYMER ENGINEERING AND SCIENCE | 1993年 / 33卷 / 09期

关键词：

D O I：

10.1002/pen.760330902

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The overall isothermal crystallization kinetics for nucleated and non-nucleated isotactic polypropylene (iPP)-dotriacontane systems was investigated. Adipic acid was used as the nucleating agent. Half-time was determined via differential scanning calorimetry as a function of the experimentally controlled variables dilution, crystallization temperature, and the addition of nucleating agent. The influence of these variables on crystallization mechanism and spherulitic structure, as implied by the Avrami analysis, was determined. The influence of these variables on fold surface energy was examined by the Lauritzen and Hoffman analysis.

引用

页码：513 / 521

页数：9

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[1] MICROPOROUS MEMBRANE FORMATION VIA THERMALLY-INDUCED PHASE-SEPARATION .6. EFFECT OF DILUENT MORPHOLOGY AND RELATIVE CRYSTALLIZATION KINETICS ON POLYPROPYLENE MEMBRANE-STRUCTURE [J].