The X-ray determination of the amounts of the phases in samples of isotactic poly(propylene) quenched from the melt at different cooling rates

被引：57

作者：

Martorana, A

Piccarolo, S

Scichilone, F

机构：

[1] UNIV PALERMO,DIPARTIMENTO INGN CHIM PROC & MAT,I-90128 PALERMO,ITALY

[2] UNIV PALERMO,DIPARTIMENTO CHIM INORGAN,I-90123 PALERMO,ITALY

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 1997年 / 198卷 / 02期

关键词：

D O I：

10.1002/macp.1997.021980231

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new procedure for the determination of the amounts of phases in samples of isotactic poly(propylene) quenched at different cooling rates from the same melted polymer is described. According to the procedure, all the patterns corresponding to the same quenching series are simultaneously analyzed for the amounts of phases so that reliable phase fractions relative to the different samples of the series are achieved. The analysis of the results points out that for increasing cooling rates above 30 degrees C/s a remarkable increase of the mesomorphic phase settles, mainly at the expense of the alpha-monoclinic one.

引用

页码：597 / 604

页数：8

共 14 条

[1] CRYSTALLIZATION OF POLYMER MELTS UNDER FAST COOLING .1. NUCLEATED POLYAMIDE-6 [J].