通过乙烯化学方法快速合成功能性聚胺
Taoguang Qu1, Kevin N West2, Paul A Rupar1
1Department of Chemistry & Biochemistry, The University of Alabama Tuscaloosa Alabama 35487-0336 USA parupar@ua.edu.
RSC advances
|July 31, 2023
概括
这项研究通过聚合后修饰合成了功能性聚胺 (PEAs),改变了可溶性和热性质. 多功能PEAs显示了先进材料应用的潜力.
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
背景情况:
- 聚胺 (PEAs) 是具有可调节性质的多功能聚合物.
- 聚合后修改为现有聚合物骨干引入多种功能提供了一条途径.
研究的目的:
- 通过后聚合修饰合成各种侧链的新型聚胺 (PEAs).
- 研究不同类型的硫醇侧链对PEAs的溶解性和热性质的影响.
- 为了证明这些功能PEA在创建可再加工网络和聚氨中所具有的潜力.
主要方法:
- 用六种不同的硫醇对含维尼利丁的PEA (PA-1) 进行后聚合修饰.
- 合成的PEAs在各种溶剂中的可溶性测试.
- 热分析,包括热重力测量分析 (TGA) 和差分扫描热量计 (DSC) 以确定热稳定性和玻璃过渡温度 (Tg).
- 制造可热再加工网和聚氨,通过将PEAs与bismaleimide和diisocyanate进行反应.
主要成果:
- 带有非极性侧链的PEA具有与原始聚合物相似的溶解度,而极性侧链在极性溶剂中提高了溶解度.
- 一个PEA衍生物 (PA-1F) 在与-2-甲硫酸盐功能化后变得水溶性.
- 所有合成的PEAs都表现出高达368°C的良好热稳定性,玻璃过渡温度在117°C至152°C之间.
- 热再加工网络和聚氨的成功制造证实了功能PEAs的多功能性.
结论:
- 聚合后修饰是一种有效的策略,用于合成具有定制性质的功能性聚胺.
- 引入各种侧链对PEAs的可溶性和热特性产生重大影响.
- 这些功能性PEA为先进材料的应用提供了广泛的潜力,包括可再加工的聚合物和聚氨.
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