A New Method to Improve Poly(3-hexyl thiophene) (P3HT) Crystalline Behavior: Decreasing Chains Entanglement To Promote Order-Disorder Transformation in Solution
文献类型：期刊论文
| 作者 | Zhao, Kui; Xue, Longjian; Liu, Jiangang; Gao, Xiang; Wu, Shupeng; Han, Yanchun; Geng, Yanhou |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2010-01-05 |
| 卷号 | 26期号:1页码:471-477 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la903381f |
| 英文摘要 | We promoted order-disorder transformation of poly(3-hexylthiophene) (P3HT) in Solution by ultrasonic oscillation which substantially improved crystallinity in its pure film. P34T with low molecular weight (M(w)) dispersed very well in p-xylene solvent and few aggregates generated in the solution. For P3HT with high M(w), the results suggested the coexistence of two phases: disordered coils in solution and ordered microcrystals in suspension. Upon ultrasonic oscillating, more ordered precursors generated in solution due to increased self-assembly from disordered to ordered configuration, which resulting front decreased extent of chains entanglement existing in high molecular system, and red shift at absorption maximum and growing intensity of the pi-pi* absorption at ca.604 nm were observed in solution. The films prepared from the oscillated solution then showed increased degree of crystallinity, pi-pi interactions and homogeneously distributed nanofibrils, which should be attributed to the ordered precursors constructed in solution. Furthermore, the best crystallinity of the film was obtained at the oscillating time of 4 min, showing the equilibrium state between the increased content of crystalline molecules and the shortened crystalline length. This simple method paves the way for the decreasing chains entanglement during crystallizing process of conjugated polymer in Solution, and it enriches the ways to improve crystalline order in thin films comprising crystallizable polymers. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272937500063 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70149]  |
| 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, Grad Univ, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Kui,Xue, Longjian,Liu, Jiangang,et al. A New Method to Improve Poly(3-hexyl thiophene) (P3HT) Crystalline Behavior: Decreasing Chains Entanglement To Promote Order-Disorder Transformation in Solution[J]. LANGMUIR,2010,26(1):471-477. |
| APA | Zhao, Kui.,Xue, Longjian.,Liu, Jiangang.,Gao, Xiang.,Wu, Shupeng.,...&Geng, Yanhou.(2010).A New Method to Improve Poly(3-hexyl thiophene) (P3HT) Crystalline Behavior: Decreasing Chains Entanglement To Promote Order-Disorder Transformation in Solution.LANGMUIR,26(1),471-477. |
| MLA | Zhao, Kui,et al."A New Method to Improve Poly(3-hexyl thiophene) (P3HT) Crystalline Behavior: Decreasing Chains Entanglement To Promote Order-Disorder Transformation in Solution".LANGMUIR 26.1(2010):471-477. |
入库方式： OAI收割
来源：化学研究所
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