期刊
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
卷 50, 期 20, 页码 1433-1437出版社
WILEY-BLACKWELL
DOI: 10.1002/polb.23146
关键词
annealing; crystallization; infrared spectroscopy; melt annealing; polar phase; poly(vinylidene fluoride)
资金
- National Natural Science Foundation of China [51163001]
- Program for Young Scientists of Jiangxi Province [20112BCB23023]
- Jiangxi Provincial Department of Education [GJJ11138]
It is still a challenge to obtain polar phase of poly(vinylidene fluoride) from melt crystallization at normal conditions. This study demonstrates that polar beta- and ? phases can be produced through melting re-crystallization of a phase, provided that moderate memory effects in the melt is achieved by annealing. Otherwise, it is inevitable to re-crystallize into a phase without any trace of polar phase. Small fragments, generated from the disintegration of long TGTG' sequences, most likely adopt trans conformation in the melt before approaching random coils, thus responsible for the formation of polar phase upon cooling. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2012
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据