Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 77, Issue -, Pages 29-36Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2013.01.007
Keywords
Polymer-matrix composites (PMCs); Smart materials; Electrical properties
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Funding
- National Natural Science Foundation of China [50973089]
- Fundamental Research Funds for the Central Universities [SWJTU11CX056, SWJTU11ZT10]
- State Key Laboratory of Molecular Engineering of Polymers (Fudan University) [K2012-08]
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We report for the first time a template-free approach for the fabrication of beta-form crystalline poly (vinylidene fluoride) (PVDF) nanowire arrays with hollow structures. The controllable growth of PVDF nanowires was achieved through the high-pressure crystallization of well-dispersed fullerene C60/PVDF nanocomposites, which was prepared by an easy physical and mechanical process. The size and morphology of PVDF nanowires were sensitive to the crystallization conditions, and large scale vertically-aligned piezoelectric nanowire arrays were finally formed by regulating the applied temperature and pressure. This was attributed to a C60-induced self-assembly of the polymer, driven by physical interactions at high pressure. With its unique structures, the as-fabricated PVDF nanowire array may diversify niche applications in harvesting energy for self-powered wireless nanodevices and nanosystems. (C) 2013 Elsevier Ltd. All rights reserved.
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