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201906008.pdf
文章编号： 1672-6987（2019）06-0059-06； DOI： 10.16351/j.1672-6987.2019.06.008
刘珂， 杨清雷， 唐亚明， 王泽华
(青岛科技大学 数理学院，山东 青岛 266042)
摘要： 针对聚(3-烷基噻吩)纳米线的微结构调控与解析、结晶过程中结构演变的机理方面存在的问题，选用两种溶剂体系制备了聚（3-辛基噻吩）（P3OT）纳米线。实验中首先考察了溶剂体系对P3OT纳米线结构与热性能的影响，随后借助原位研究阐明了纳米线的形成机制。结果表明：向P3OT的不良溶剂苯甲醚中添加少量良溶剂氯仿后，得到的P3OT纳米线主链和侧链构象的规整程度更好，π-π相互作用更强，更高的结构规整性导致其热稳定性提高。变温紫外光谱的研究证实，P3OT在混合溶剂中的结晶行为遵循传统高分子的结晶动力学。
关键词： 聚（3-辛基噻吩）； 纳米线； 结构调控
中图分类号： TQ 207+.2文献标志码： A
引用格式： 刘珂， 杨清雷， 唐亚明, 等. 溶剂体系对聚（3-辛基噻吩）纳米线的结构性能调控及纳米线形成机制的原位研究\[J\]. 青岛科技大学学报（自然科学版）， 2019， 40（6）： 59-64.
LIU Ke, YANG Qinglei, TANG Yaming, et al. Structure-property control by solvent approach and in-situ study on formation mechanism of poly(3-octylthiophene) nanowires\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2019, 40(6)： 59-64.
Structure-Property Control by Solvent Approach and In-situ Study on
Formation Mechanism of Poly(3-octylthiophene) NanowiresLIU Ke, YANG Qinglei, TANG Yaming, WANG Zehua
(College of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: In this work, two solvent systems were used to prepare poly (3-octyl thiophene) (P3OT) nanowires for the micro-structural control and analysis of the P3OT nanowires and the mechanism of the structure evolution during the crystallization of nanowire solution. The effects of solvent system on the structure and thermal properties of P3OT nanowires were investigated firstly, and then the formation mechanism of nanowires was investigated in-situ. The results show that after adding a small amount of good solvent chloroform to bad solvent anisole to the P3OT, the main chain and side chain conformation of the P3OT nanowires are better, and the π-π interaction is stronger. The higher structural regularity leads to the increasing thermal stability. In-situ UV-Vis spectroscopy reveals that the crystallization behavior of P3OT nanowires in mixed solvents follows the traditional crystallization kinetics.
Key words: poly(3-octylthiophene); nanowires; structure control
收稿日期： 2018-11-25
基金项目： 国家自然科学基金项目(21604047)；山东省自然科学基金项目（ZR2016BB28）.
作者简介： 刘珂(1978—),男,实验师.
