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Crystallization Behavior of Nanostructured Poly(vinylidene fluoride)/1-Vinyl-3-butylimidazolium Chloride Ionic Liquid Composites
Xing, CY; Wang, YY; Li, YJ; Li, JY; Li, YJ (reprint author), Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China.
2016
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume37Issue:4Pages:775—780
Subtype期刊文献
AbstractThe 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.
KeywordPiezoelectric Beta-polymorph Poly(Methyl Methacrylate) Carbon Nanotubes Nanocomposites Plasticizers Permittivity Conductivity Matrix
DOI10.7503/cjcu20150822
Indexed BySCI
Language英语
WOS IDWOS:000372874200026
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25675
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorLi, YJ (reprint author), Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China.
Recommended Citation
GB/T 7714
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,2016,37(4):775—780.
APA Xing, CY,Wang, YY,Li, YJ,Li, JY,&Li, YJ .(2016).Crystallization Behavior of Nanostructured Poly(vinylidene fluoride)/1-Vinyl-3-butylimidazolium Chloride Ionic Liquid Composites.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,37(4),775—780.
MLA Xing, CY,et al."Crystallization Behavior of Nanostructured Poly(vinylidene fluoride)/1-Vinyl-3-butylimidazolium Chloride Ionic Liquid Composites".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 37.4(2016):775—780.
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