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
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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. |
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