Positron annihilation and differential scanning calorimetry investigations in poly(methylmethacrylate)/low molecular weight poly(ethylene oxide) polymer blends

被引：0

作者：

Machado, JC ^{[1
]}

Silva, GG ^{[1
]}

Soares, LS ^{[1
]}

机构：

[1] UFMG, ICEx, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2000年 / 38卷 / 08期

关键词：

PALS; DSC; PEO/PMMA polymer blends;

D O I：

10.1002/(SICI)1099-0488(20000415)38:8<1045::AID-POLB5>3.3.CO;2-E

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Positron annihilation lifetime spectroscopy (PALS) and differential scanning calorimetry (DSC) measurements were performed in atactic poly(methylmethacrylate) and low molecular weight poly(ethylene oxide) (PEO) polymer blends, prepared by codissolution in acetonitrile, covering the full range of composition. Results from the two techniques indicate that a "window of miscibility" is attained at around 20-30 wt % of the semicrystalline PEG. (C) 2000 John Wiley & Sons, Inc.

引用

页码：1045 / 1052

页数：8

共 14 条

[1] Activation energy for crystallization of low molecular weight poly(ethylene oxide) and low molecular weight poly(ethylene oxide)/poly(methyl methacrylate) blends determined by DSC and polarized optical microscopy
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