含有1,4-二二丁烯的同位素构成高流动性梯形类型合聚合物的构建块
Shengnan Zhang1, Yuqian Liu2,3, Hao Dong1
1Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin University, Tianjin, 300072, China.
研究人员从5,10-dihydroindeno[2,1-a]indene (DHI) 衍生物开发了新的联聚合物,用于灵活的电子产品. 反异构体聚合物表现出卓越的性能,实现了对有机场效应晶体管 (OFET) 至关重要的高电荷载体流动性.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物化学 聚合物化学
背景情况:
- 几乎无形的合聚合物为有机场效应晶体管 (OFET) 提供了灵活性和高电荷载体流动性.
- 对于这些先进的聚合物材料的新型结构块的研究是有限的.
- 5,10-二二二[2,1-a] (DHI) 核心被探索为一个潜在的构建块.
研究的目的:
- 合成和描述基于DHI的新型单体及其相应的合聚合物.
- 研究异构体结构变异对聚合物特性和电子性能的影响.
- 评估这些新材料在灵活或可拉伸的OFET应用中的潜力.
主要方法:
- 合成两种DHI衍生物,抗C16DHIT-Br和syn-C16DHIT-Br,具有基团来最大限度地减少扭曲障碍.
- 这些单体与甲 (BT) 的共聚合,生成抗C16DHIT-BT和syn-C16DHIT-BT聚合物.
- 聚合物性质的表征,包括可溶性,可加工性,骨干平面性,电子性质和通过X射线衍射和显微镜的形态学.
主要成果:
- 这两种聚合物都表现出平面的骨干,良好的溶解性和溶液可加工性.
- 反同位体 (anti-C16DHIT-BT) 与同位体 (syn-C16DHIT-BT) 相比,显示出更有序的堆叠和更高的结晶度.
- 使用抗C16DHIT-BT制造的OFET设备实现了2.38cm2V-1s-1的孔移动性,超过了同同异构体和类似材料,如pIDTBT.
结论:
- 用基功能化的DHI核心作为高性能合聚合物的有前途的构建模块.
- 同位体结构控制 (反对同位体导向) 显著影响了聚合物形态学和电子特性.
- 反C16DHIT-BT聚合物对先进的灵活和可拉伸的有机电子产品具有很好的潜力,特别是在OFET应用中.
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