NDLI: Effect of pressure on the structure and properties of polymeric gel based on polymer PVdF-HFP and ionic liquid [BMIM][BF4]

Content Provider	Springer Nature Link
Author	Yuan, Chaosheng Su, Lei Yang, Kun Li, Zijiong Cheng, Xuerui Wang, Yongqiang Li, Liangbin
Copyright Year	2014
Abstract	Poly(vinylidenefluoride-co-hexafluoropropylene) (PVdF-HFP)/ionic liquid (IL) (1-butyl-3-methylimidazolium tetrafluoroborate, [BMIM][BF4]) polymeric gels were prepared by cooling method under 0.2, 250, 500, and 750 MPa, respectively. The gel structure and electrochemical property were characterized by differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), complex impedance spectroscopy (CIS), and cyclic voltammetry (CV). It was found that the phase structure of PVdF-HFP/[BMIM][BF4] gel became more orderly while the fracture surface became more irregular with the pressure increasing. FT-IR spectroscopy revealed that ionic liquid (IL) partly complexed with the polymer PVdF-HFP and partly remained dispersed in the matrix, and the relative ratio of them could be changed by high pressure. The ionic conductivity of PVdF-HFP/[BMIM][BF4] gel was increased with the pressure increasing below 500 MPa, however, decreased from 500 to 750 MPa, which was similar to variation of the amount of uncomplexed IL. It was attributed to the effect of high pressure on ionic density and gel structure of polymer-IL gel. These results indicated that the gel formation under high pressure might be another promising way to prepare IL-GPEs with excellent properties.
Starting Page	925
Ending Page	932
Page Count	8
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	293
Issue Number	3
e-ISSN	14351536
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-12-16
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	High pressure Ionic liquid gel Electrochemical properties Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry Food Science Nanotechnology and Microengineering
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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