水和离子液体溶解的分支聚烯含有阴离子和阴离子部分
Thomas V Richter1, Christian Bühler, Sabine Ludwigs
1Institut für Polymerchemie, Universität Stuttgart, 70569 Stuttgart, Germany.
Journal of the American Chemical Society
|December 17, 2011
概括
这项研究介绍了离子功能化的分支聚烯. 这些聚合物表现出可调节的溶解性,并保持其吸收特性,提供多功能应用.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
背景情况:
- 分支聚烯是具有可调节电子特性的先进材料.
- 聚合物末端组的功能化显著影响溶解性和材料行为.
- 控制聚合物溶解度对于各种环境中的加工和应用至关重要.
研究的目的:
- 合成和表征离子功能化的分支聚烯.
- 调查阴离子 (碳酸) 和阴离子 (甲基) 末组对聚合物溶解度和性能的影响.
- 探索这些功能化聚合物的相位转移能力和溶剂兼容性.
主要方法:
- 具有特定终端组功能化的分支聚烯的合成.
- 在不同的pH值下,在各种有机溶剂和水溶液中测试溶解度.
- 聚合物属性的表征,包括吸收光谱.
主要成果:
- 成功合成了聚3-硫) 与碳酸 (P3T-COOH) 和甲基 (P3T-MIM) 末端组.
- P3T-COOH证明了有机溶剂和水之间的可逆相移,取决于pH值.
- P3T-MIM在室温离子液体中表现出可溶性.
- 聚二的吸收特性不受离子终端组功能化的影响.
结论:
- 离子功能化极大地影响了分支聚烯的溶解性.
- 通过阳离子P3T-COOH.实现了对pH值敏感的水溶性.
- 阴离子P3T-MIM在离子液体中具有可溶性,扩大了加工选项.
- 开发的功能化聚氨酸在需要调节可溶性和稳定的光学性能的应用中具有前景.
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