Pressure-induced ionic liquid crystal in 1-dodecyl-3-methylimidazolium tetrafluoroborate

doi:10.1039/c7ra03921b

	Pressure-induced ionic liquid crystal in 1-dodecyl-3-methylimidazolium tetrafluoroborate
	Zhu, X; Li, HN; Wang, Z; Yuan, CS; Zhu, PW; Su, L; Yang, K; Wu, J; Yang, GQ; Li, XD
刊名	RSC ADVANCES
	2017
卷号	7 期号:42 页码:26428-26433
ISSN号	2046-2069
DOI	10.1039/c7ra03921b
文献子类	Article
英文摘要	The phase behaviors of 1-dodecyl-3-methylimidazolium tetrafluoroborate ([C12MIM][BF4]) had been investigated by means of Raman spectroscopy and polarized optical microscopy under pressure values up to 2.0 GPa at the temperature of 80.0 degrees C. Upon compression, change in the ratio of peak heights of symmetric and asymmetric CH2 stretching modes of Raman spectra in [C12MIM][BF4] (r((CH2) ss/(CH2) as)) indicated that it might experience two successive phase transitions. The structure evolution of the sample, which was investigated through the image analysis from polarized optical microscopy, was found to share many of the known quantitative properties of the smectic A phase of [C12MIM][BF4]. These facts were suggestive of ionic liquid crystal induced by compression in [C12MIM][BF4] under the pressure between 0.25 GPa to 0.60 GPa, which was similar to ionic liquid crystal upon cooling from its melt.
WOS关键词	VIBRATIONAL-SPECTRA ; RAMAN-SPECTRA ; MESOPOROUS SILICA ; PHASE-BEHAVIOR ; ALKYL CHAINS ; CONFORMATION ; SPECTROSCOPY ; FILMS ; DYE ; MONTMORILLONITE
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000401815800065
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285206]
专题	高能物理研究所_管理与技术支持高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhu, X,Li, HN,Wang, Z,et al. Pressure-induced ionic liquid crystal in 1-dodecyl-3-methylimidazolium tetrafluoroborate[J]. RSC ADVANCES,2017,7(42):26428-26433.
APA	Zhu, X.,Li, HN.,Wang, Z.,Yuan, CS.,Zhu, PW.,...&李晓东.(2017).Pressure-induced ionic liquid crystal in 1-dodecyl-3-methylimidazolium tetrafluoroborate.RSC ADVANCES,7(42),26428-26433.
MLA	Zhu, X,et al."Pressure-induced ionic liquid crystal in 1-dodecyl-3-methylimidazolium tetrafluoroborate".RSC ADVANCES 7.42(2017):26428-26433.