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题名:
Crystallization Behavior of Nanostructured Poly(vinylidene fluoride)/1-Vinyl-3-butylimidazolium Chloride Ionic Liquid Composites
作者: Xing, CY; Wang, YY; Li, YJ; Li, JY
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
出版日期: 2016
卷号: 37, 期号:4, 页码:775—780
关键词: PIEZOELECTRIC BETA-POLYMORPH ; POLY(METHYL METHACRYLATE) ; CARBON NANOTUBES ; NANOCOMPOSITES ; PLASTICIZERS ; PERMITTIVITY ; CONDUCTIVITY ; MATRIX
DOI: 10.7503/cjcu20150822
通讯作者: Li, YJ (reprint author), Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China.
文章类型: 期刊文献
英文摘要: The effect of poly( vinylidene fluoride)-graft-( 1-vinyl-3-butylimidazolium chloride [ VBIM][ Cl]) ( i. e. PVDF-g-[ VBIM] [ Cl]) nanodomains on the crystallization behavior in nanostructured PVDF/ [ VBIM][ Cl] composite was investigated by means of differential scanning calorimeter ( DSC), polarized optical microscope( POM) and wide. angle X-ray diffractometer( WAXD) measurements. H-1 nuclear magnetic resonance ( H-1 NMR) results confirm the successful grafting of [ VBIM] [ Cl] onto the PVDF chains. Transmission electron microscopy( TEM) images show PVDF-g-[ VBIM][ Cl] nanodomains in the nanostruc. tured PVDF/ [ VBIM] [ Cl] ( 100/ 8, mass ratio) composite, which is distinct from the miscible PVDF/ [ VBIM][ Cl] blend prepared by physically blending. The DSC results show higher crystallization temperature ( T-c) and shorter crystallization time in the nanostructured PVDF/ [ VBIM][ Cl] composite, compared with those of neat PVDF and PVDF/ [ VBIM] [ Cl] blend( 100/ 8), respectively, indicating that nanodomains enhanced the crystallization rate of the PVDF crystals. Moreover, a larger nucleation density accompanied with smaller spherulites was observed in the nanostructured sample by POM photos. It is considered that strong thermodynamic incompatibility of nanodomains with PVDF matrix caused a large amount of partially ordered molecular chains at their interface, which favorites the nucleus formation and thus improves the entire crystallization rate of the PVDF crystals. Because of the confinement of [ VBIM][ Cl] within nanodomains, dominant non. polar. crystals were found in the nanostructured sample, which was the same with that of neat PVDF.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000372874200026
ISSN号: 0251-0790
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25675
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Xing, CY,Wang, YY,Li, YJ,et al. Crystallization Behavior of Nanostructured Poly(vinylidene fluoride)/1-Vinyl-3-butylimidazolium Chloride Ionic Liquid Composites[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2016-01-01,37(4):775—780.
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文件名: Crystallization Behavior of Nanostructured Poly(vinylidene fluoride)1-Vinyl-3-butylimidazolium Chloride Ionic Liquid Composites.pdf
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