对立体正规聚 ((环二烯碳酸盐) 的制备和性能进行研究
Ming Zhang1, Chengqian Zhang2, Pengyuan Zhang2
1State Key Laboratory of Coking Coal Resources Development and Comprehensive Utilization, Pingdingshan 467002, China.
Molecules (Basel, Switzerland)
|July 14, 2023
概括
这项研究将二氧化碳 (CO2) 转化为高立体规律的多碳酸 (cyclohexenylene carbonate),使用合催化剂. 由此产生的聚合物表现出优异的热稳定性和机械强度,适用于潜在的应用.
科学领域:
- 聚合物化学 聚合物化学
- 绿色化学 绿色化学
- 催化剂是一种催化剂.
背景情况:
- 作为原料的二氧化碳 (CO2) 使用对于减轻温室气体排放至关重要.
- 为基于二氧化碳的聚合物合成开发高效的催化系统是一个活跃的研究领域.
研究的目的:
- 通过二氧化碳和氧化环素的共聚化合成高立体规律的聚 ((环二烯碳酸).
- 研究催化剂结构和反应条件对共聚合物的影响.
- 评估合成聚合物的热和机械性能.
主要方法:
- 使用一种性双核复合物的催化剂,对二氧化碳和环氧化物的共聚合.
- 系统地研究催化剂结构,二氧化碳压力和温度效应.
- 聚合物性质的表征,包括立体规律性,分子量,玻璃过渡温度,分解温度和拉伸强度.
主要成果:
- 成功制备了具有高立体规律性 (93.5%) 的聚乙烯碳酸.
- 确定了最佳的催化剂结构和反应条件,以实现高效的共聚合.
- 获得了一种分子质量为20kg/mol的聚合物,Tg为129.7°C,Td为290°C,拉伸强度为42.8MPa.
结论:
- 的双核复合物有效催化二氧化碳和环素氧化物的立体选择性共聚合.
- 由此产生的亚利法性聚碳酸盐表现出有前途的热稳定性和机械性能.
- 这项工作突显了二氧化碳固定成为有价值的聚合物材料的潜力.
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