MISCIBILITY IN BLENDS OF POLY(VINYL ACETATE) WITH POLY(METHYL METHACRYLATE) STUDIED BY FTIR AND DSC

被引：40

作者：

SONG, M

LONG, FJ

机构：

[1] Guangzhou Institute of Chemistry, Academia Sinica, Guangzhou P.O. Box

来源：

EUROPEAN POLYMER JOURNAL | 1991年 / 27卷 / 09期

关键词：

D O I：

10.1016/0014-3057(91)90045-P

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Miscibility in blends of poly(methyl methacrylate) (PMMA) with poly(vinyl acetate) (PVAc) has been studied by using differential scanning calorimetry and i.r. spectra techniques. PMMA is miscible with PVAc at all compositions. PMMA/PVAc blends show a lower critical solution temperature. The FTIR spectrum of a blend could not be adding spectra of the two pure components. There are spectral differences between miscible and immiscible blends either prepared by casting from tetrahydrofuran solution or phase separation. It is suggested that conformational changes resulting from hydrogen bond interactions between two similar polymers and solvents in solution are involved in miscible blends.

引用

页码：983 / 986

页数：4

共 17 条

[1]

Bohn L., 1968, RUBBER CHEM TECHNOL, V41, P495, DOI [10.5254/1.3547187, DOI 10.5254/1.3547187]

[2] FOURIER-TRANSFORM INFRARED STUDY OF POLYMER BLENDS .1. POLY(VINYLIDENE FLUORIDE) - POLY(METHYL METHACRYLATE) SYSTEM [J].