Compatibility of polymer blends evaluated by crystallization dynamics. Simultaneous DSC-FTIR method

被引：20

作者：

Yoshida, H ^{[1
]}

Zhang, GZ ^{[1
]}

Kitamura, T ^{[1
]}

Kawai, T ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Engn, Dept Appl Chem, Tokyo 1920397, Japan

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2001年 / 64卷 / 02期

关键词：

conformation; crystallization; DSC-FTIR; miscibility; PiPMA; PMMA; polymer blend; PVDF;

D O I：

10.1023/A:1011559420408

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The mixing state of poly(vinylidene fluoride) (PVDF) and two amorphous polymers, poly(methyl methacrylate) (PMMA) and poly(isopropyl methacrylate) (PiPMA) were investigated from the viewpoint of crystallization dynamics using simultaneous DSC-FTIR method. The crystallization rate (R*) and the growth rate of trans-gauche-trans-gauche' (TGTG') conformation (Rc*) depended on both the blend content (phi) and the crystallization temperature for PVDF/PMMA. The temperature and phi dependency of R* and Rc* were almost the same for PVDF/PMMA. However, R* and Rc* depended scarcely on f for PVDF/PiPMA, and the temperature dependency of R* differed from that of Rc* for PVDF/PiPMA. These results showed that PVDF and PMMA were miscible on molecular level, and that PVDF/PiPMA was immiscible and the concentration fluctuation existed in the PVDF-rich phase.

引用

页码：577 / 583

页数：7

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