A NOVEL CALIBRATION FOR THE CHARACTERIZATION OF POLYETHYLENE COPOLYMERS BY TEMPERATURE RISING ELUTION FRACTIONATION

被引：26

作者：

BONNER, JG ^{[1
]}

FRYE, CJ ^{[1
]}

CAPACCIO, G ^{[1
]}

机构：

[1] BP CHEM LTD, CTR RES & DEV, POB 21, GRANGEMOUTH FK3 9XH, SCOTLAND

来源：

POLYMER | 1993年 / 34卷 / 16期

关键词：

POLYETHYLENE; COPOLYMER; FRACTIONATION;

D O I：

10.1016/0032-3861(93)90488-V

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 fresh appraisal of the analytical temperature rising elution fractionation (TREF) technique is presented. It is shown that by using linear paraffins and low molecular weight polyethylenes as standards, a new, generalized calibration procedure for TREF can be defined. This allows polyethylene copolymers to be characterized in terms of the length of the methylene sequences between branches. Such a calibration relates directly to the crystallization behaviour of the copolymer, and is very useful for a proper understanding of chain structure in linear low density polyethylene materials.

引用

页码：3532 / 3534

页数：3

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