Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81818
Title: Chemically cross-linked ultrathin electrospun poly(vinylidene fluoride-co-hexafluoropropylene) nanofibrous mats as ionic liquid host in electrochromic devices
Authors: Zhou, Rui
Liu, Wanshuang
Kong, Junhua
Zhou, Dan
Ding, Guoqiang
Leong, Yew Wei
Pallathadka, Pramoda Kumari
Lu, Xuehong
Keywords: Electrospinning
Cross-linking
Issue Date: 2014
Source: Zhou, R., Liu, W., Kong, J., Zhou, D., Ding, G., Leong, Y. W., et al. (2014). Chemically cross-linked ultrathin electrospun poly(vinylidene fluoride-co-hexafluoropropylene) nanofibrous mats as ionic liquid host in electrochromic devices. Polymer, 55(6), 1520-1526.
Series/Report no.: Polymer
Abstract: In this work, ultrathin free-standing electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) nanofibrous mats are realized through the use of 1,3-diaminopropane as the chemical cross-linking agent. The cross-linking reaction occurs within the nanofibers as well as between the nanofibers that are in touch, forming relatively strong inter-fiber junctions and hence resulting in remarkable improvement in structural integrity of the electrospun mats with very small thickness. The chemically cross-linked electrospun mats are used as the host for 1-butyl-3-methylimidazolium tetrafluoroborate to prepare ionic liquid (IL)-based polymer electrolytes, and the effects of cross-linking on swelling and crystallization behaviors of the mats are studied. The results show that with a low degree of cross-linking, a high ionic conductivity of 2.6 mS/cm can be achieved, which is mainly due to the presence of a significant amount of free ILs in the interpenetrating pores of the mats. An electrochromic device is fabricated using this electrolyte to demonstrate the potential of the mat as IL host, especially its capability to greatly reduce IL consumption.
URI: https://hdl.handle.net/10356/81818
http://hdl.handle.net/10220/40977
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2014.01.047
Schools: School of Materials Science & Engineering 
Research Centres: Temasek Laboratories 
Rights: © 2014 Elsevier.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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