Formation of parallel aligned nano-fibrils of poly(3,3 '''-didodecylquaterthiophene) induced by the unimer coils in solution

doi:10.1039/c3ra40719e

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	Formation of parallel aligned nano-fibrils of poly(3,3 '''-didodecylquaterthiophene) induced by the unimer coils in solution
	Xu, Yaozhuo; Liu, Jiangang; Wang, Haiyang; Zheng, Lidong; Han, Yanchun
刊名	RSC ADVANCES
	2013
卷号	3 期号:30 页码:12069-12074
ISSN号	2046-2069
DOI	10.1039/c3ra40719e
英文摘要	It was found that free poly(3,3'''-didodecylquaterthiophene) (PQT-12) unimer coils in solution had a significant effect on the formation of aligned fibrils in thin films. Long and parallel aligned nano-fibrils formed easily when more unimer coils existed in solution. In contrast, small rod-like crystals with a random orientation would form when less unimer coils existed in solution. The content of unimer coils in solution was increased by the methods such as choosing proper solvents, elevating the temperature and filtering aggregates in solution, etc. For example, the proportion of PQT-12 unimer coils in chlorobenzene increased from 19.9% to 100% when the temperature was raised from 1 degrees C to 60 degrees C. During the evaporation of solvents, the conformation of the unimer coils in solution transformed from coils to extended chains firstly, and then ordered aggregates formed. The ordered aggregates assembled into nano-fibrils via pi-pi interaction. The rest of ordered aggregates in solution adhered to the boundaries of the nano-fibrils and grew along the boundaries of nano-fibrils to form parallel fibers. The parallel aligned fibers preferred an edge-on orientation without chain-folding due to the high backbone rigidity of PQT-12.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000321623200017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46579]
专题	中国科学院化学研究所
通讯作者	Han, Yanchun
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yaozhuo,Liu, Jiangang,Wang, Haiyang,et al. Formation of parallel aligned nano-fibrils of poly(3,3 '''-didodecylquaterthiophene) induced by the unimer coils in solution[J]. RSC ADVANCES,2013,3(30):12069-12074.
APA	Xu, Yaozhuo,Liu, Jiangang,Wang, Haiyang,Zheng, Lidong,&Han, Yanchun.(2013).Formation of parallel aligned nano-fibrils of poly(3,3 '''-didodecylquaterthiophene) induced by the unimer coils in solution.RSC ADVANCES,3(30),12069-12074.
MLA	Xu, Yaozhuo,et al."Formation of parallel aligned nano-fibrils of poly(3,3 '''-didodecylquaterthiophene) induced by the unimer coils in solution".RSC ADVANCES 3.30(2013):12069-12074.