Reversible Sol-Gel Transition of Oligo(p-phenylenevinylene)s by pi-pi Stacking and Dissociation

	Reversible Sol-Gel Transition of Oligo(p-phenylenevinylene)s by pi-pi Stacking and Dissociation
	Yao, Chuan ; Lu, Qi ; Wang, Xianhong ; Wang,Fosong
刊名	journal of physical chemistry b
	2014
卷号	118 期号:17 页码:4661-4668
关键词	EXCITATION-ENERGY TRANSFER SUPRAMOLECULAR CHIRALITY ORGANIC LIQUIDS ORGANOGELS GELATORS EMISSION FLUORESCENCE NANOFIBER NETWORKS GELATION
通讯作者	wang,xh
英文摘要	methyl sulfide terminated trans-oligo(p-phenylenevinylene) derivatives (opvn, n is the number of phenyl rings) were synthesized, and reversible sol-gel transition was observed in a variety of organic solvents. investigations with uv-vis, fluorescence, and h-1 nmr spectroscopy revealed that aromatic pi-pi stacking and van der waals forces were important in the formation of the gels, with the former being the main driving force for sol-gel transition. the pi-conjugation length showed a key influence on self-assembly and gelation property: the gel-to-sol transition temperature (t-gel) increased with pi-conjugation length. the gels of opv4-7 can self-assemble into one-dimensional fibers with different sizes and shapes, depending on their pi-conjugation length. on the basis of x-ray diffraction measurements and spectroscopic data, a self-assembly model was proposed. our observation may be useful for designing functional pi-gelators based on pi-pi stacking.
收录类别	SCI
语种	英语
WOS记录号	WOS:000335433000022
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/57351]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Yao, Chuan,Lu, Qi,Wang, Xianhong,et al. Reversible Sol-Gel Transition of Oligo(p-phenylenevinylene)s by pi-pi Stacking and Dissociation[J]. journal of physical chemistry b,2014,118(17):4661-4668.
APA	Yao, Chuan,Lu, Qi,Wang, Xianhong,&Wang,Fosong.(2014).Reversible Sol-Gel Transition of Oligo(p-phenylenevinylene)s by pi-pi Stacking and Dissociation.journal of physical chemistry b,118(17),4661-4668.
MLA	Yao, Chuan,et al."Reversible Sol-Gel Transition of Oligo(p-phenylenevinylene)s by pi-pi Stacking and Dissociation".journal of physical chemistry b 118.17(2014):4661-4668.