β-Phase Crystallization of Poly(vinylidene fluoride) in Poly(vinylidene fluoride)/Poly(ethyl methacrylate) Blends

被引：0
|
作者：
Zi-Jie Huang [1 ]
Jing Jiang [1 ]
Gi Xue [1 ]
Dong-Shan Zhou [1 ,2 ]
机构：
[1] Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High Performance Polymer Materials and Technology, and The State Key Laboratory of Coordination Chemistry, Nanjing University
[2] School of Physical Science and Technology, Xinjiang Key Laboratory and Phase Transitions and Microstructures in Condensed Matters, Yili Normal University
来源：
Chinese Journal of Polymer Science | 2019年 / 01期
基金：
中国国家自然科学基金;
关键词：
β-Crystal of PVDF; Mesophase; PVDF/PEMA blend; Ultra-fast scanning calorimetry;
D O I：
暂无
中图分类号：
O631 [高分子物理和高分子物理化学];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The nature of the crystalline phase of poly(vinylidene fluoride)(PVDF) in compatible blends with poly(ethyl methacrylate)(PEMA) was investigated by using X-ray diffraction(XRD), infrared microscopy(IR) and differential scanning calorimetry(DSC). The βphase of PVDF was observed after quenching from the melt and further annealing above the glass transition temperature over a composition range. The PVDF/PEMA blend with weight ratio of 3:2 has formed higher content of PVDF β crystals than others. By taking advantage of fast cooling rate of ultrafast differential scanning calorimeter(UFDSC), the quenching process of blends was modeled and tested simultaneously, and the melting behavior of β crystals in all blends was investigated. Three types of crystallization behavior of βphase PVDF in blends were found after quenching-annealing at different temperatures.
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页码：94 / 100 +4-7
页数：11
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