CALORIMETRIC STUDY OF BLENDS OF LOW-DENSITY POLYETHYLENE (LDPE) AND LINEAR LOW-DENSITY POLYETHYLENE (LLDPE) TEMPERATURE RISING ELUTION FRACTIONATION (TREF) FRACTIONS

被引：33

作者：

JOSKOWICZ, PL

MUNOZ, A

BARRERA, J

MULLER, AJ

机构：

[1] UNIV SIMON BOLIVAR,DEPT CIENCIAS MAT,POLIMEROS GRP,CARACAS 1080A,VENEZUELA

[2] INTEVEP SA,DEPT PETROQUIM,SECC POLIMEROS,CARACAS 1070A,VENEZUELA

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 1995年 / 196卷 / 01期

关键词：

D O I：

10.1002/macp.1995.021960128

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Preparative temperature rising elution fractionation (TREF) on commercial linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) samples has been performed. The resulting fractions exhibited a bimodal and a unimodal distribution, respectively. Two LLDPE fractions of low (5 CH3/1000 C) and high (21 CH3/1000 C) short-chain branching content were solution-mixed with the LDPE central fraction (16 CH3/1000 C). Indirect evidence based on differential scanning calorimetry results suggest that the fractions with similar branch contents are more miscible than those with dissimilar ones.

引用

页码：385 / 398

页数：14

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