聚-3,4-乙烯二氧化/甲的热转换和结构特征[7]uril) 伪多托克桑和多托克桑薄膜
Barbara Hajduk1, Paweł Jarka2, Henryk Bednarski1
1Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marie Curie-Skłodowska Str., 41-819 Zabrze, Poland.
Materials (Basel, Switzerland)
|March 28, 2024
概括
这项研究研究了聚3,4-乙烯二氧化硫/甲[7]uril) (PEDOT∙CB7) 伪聚和聚薄膜. 黄[7]uril的加入显著改变了PEDOT.
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
- 超分子化学 超分子化学
背景情况:
- 聚3,4-乙烯二氧化硫 (PEDOT) 是一种导电性聚合物,在电子领域有应用.
- 超分子化学提供了通过宿主-客人相互作用修改聚合物特性的方法.
- 黄瓜[7]uril (CB7) 是一种宏循环宿主分子,能够形成包容复合体.
研究的目的:
- 研究与CB7复合的PEDOT的热过渡和结构性质.
- 为了比较PEDOT∙CB7伪多聚 (PS) 和多聚 (PR) 薄膜与原始PEDOT的性能.
- 了解CB7含量对PEDOT形态和结晶性的影响.
主要方法:
- 可变温度光谱圆测量 (VTSE) 用于热分析.
- 不同扫描热量计 (DSC) 检测热事件.
- 用X射线衍射 (XRD) 分析晶体结构.
- 原子力显微镜 (AFM) 检查表面地形.
主要成果:
- 在PEDOT∙CB7-PS和PEDOT∙CB7-PR片中,VTSE和DSC发现了内热过程和玻璃过渡.
- XRD显示了PEDOT∙CB7粉末中的连锁 π-π 堆叠,表明了特定的芳香环排列.
- AFM在表面地形上表现出显著的差异,PEDOT∙CB7薄膜比原始PEDOT具有更有利的参数.
- 在原始的PEDOT表面上,结晶度很高,而PEDOT∙CB7膜显示了由于CB7存在而改变的形态.
结论:
- 将CB7纳入PEDOT显著改变了其热和结构性质.
- 与原始PEDOT相比,PEDOT∙CB7-PS和PEDOT∙CB7-PR薄膜表现出明显的热过渡和表面形态.
- 观察到的变化直接与CB7与PEDOT骨干的存在和相互作用有关.
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