UPPER CRITICAL SOLUTION TEMPERATURE BEHAVIOR IN POLY(VINYLIDENE FLUORIDE) POLY(METHYL METHACRYLATE) BLENDS

被引：49
|
作者：
SAITO, H [1 ]
FUJITA, Y [1 ]
INOUE, T [1 ]
机构：
[1] TOKYO INST TECHNOL,DEPT TEXT & POLYMER MAT,TOKYO 152,JAPAN
来源：
POLYMER JOURNAL | 1987年 / 19卷 / 04期
关键词：
PLASTICS FILMS - Morphology - POLYMERS - Thermodynamic Properties - SPECTROSCOPY; INFRARED;
D O I：
10.1295/polymj.19.405
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The authors investigated the morphological development in poly(vinylidene fluoride)/poly(methyl methacrylate) blends during the isothermal annealing below melting temperature. At shallow quench depth from the melting point, normal spherulite growth was observed. At deep quench depth, liquid-liquid phase separation took place, resulting in a modulated structure characteristic to spinodal decomposition. There exists a defined boundary between 'the shallow' and 'the deep' regions in phase diagram. This suggests the existence of upper critical solution temperature (UCST). The UCST behavior was confirmed by dynamic mechanical analysis and Fourier transform infrared spectroscopy.
引用
收藏
页码：405 / 412
页数：8
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