一步侧链裂解和开热电聚合物的现场兴奋剂
Yu Xu1,2, Fei Zhong1,2, Jian Song3
1State Key Laboratory of High Performance Ceramics, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
Angewandte Chemie (International ed. in English)
|March 10, 2026
概括
研究人员为开聚合物开发了一种新的"切割和兴奋剂"方法,提高了热电性能. 这一策略为能源应用创造了高导电性和稳定的材料.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 能源科学 能源科学
背景情况:
- 开放联聚合物由于其独特的结构,显示了热电 (TE) 应用的潜力.
- 然而,他们的表现往往受到结构障碍和对空气敏感性的阻碍.
研究的目的:
- 制定制造具有高导电性和稳定的无侧链开聚合物的战略.
- 为了研究单步裂变和兴奋剂过程对聚合物特性的影响.
主要方法:
- 使用三甲硫酸 (TfOH) 采用了一步"切割和兴奋剂"策略.
- 三种基于[1,2-c;4,5-c\]双 (BBT) 的开聚合物 (PBBTSi-T, PBBTSi-2T, PBBTSi-TVT) 的固体薄膜被TfOH处理.
- 这一过程同时去除了绝缘烯侧链,并在现场对聚合物骨干进行了注.
主要成果:
- 治疗结果是高度有序的分子包装和高效的现场兴奋剂,没有外部兴奋剂.
- 没有侧链的 PBBT-2T 聚合物达到 358.5 S cm-1 的最大导电率,功率系数为 41.4 μW m-1 K-2 .
- 这些性能指标是开聚合物中报告的最高指标之一,具有出色的空气和热稳定性.
结论:
- 开发的单阶段的方法.
- 切割和使用兴奋剂.
- 该策略是一种强大的方法,用于提高开聚合物的热电性能.
- 这种方法有效地优化了载体的移动性和度,从而实现了高导电性和稳定性.
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