Tunable poly(hydroxyl urethane) from CO<sub>2</sub>-Based intermediates using thiol-ene chemistry
作者:Chau N. Tang、Hunaid B. Nulwala、Krishnan Damodaran、Palwinder Kaur、David R. Luebke
DOI:10.1002/pola.24631
日期:2011.5.1
CO2‐based, crosslinked poly(hydroxyl urethane)s (PHUs) are accessed via a set of efficient reactions based on the addition chemistry of thiol‐ene and amines‐cyclic carbonates. This strategy to utilize 5‐membered cyclic carbonates produced from CO2 is robust, facile, modular, and atomically efficient in nature. The thiol‐ene reaction was utilized to access bis(cyclic carbonate), tris(cyclic carbonate)
基于硫2烯和胺类环状碳酸酯的加成化学反应,可以通过一组有效的反应来访问基于CO 2的交联聚羟基聚氨酯(PHU)。该策略利用了由CO 2产生的五元环状碳酸酯本质上是健壮,轻便,模块化和原子高效的。硫醇-烯反应用于从4-乙烯基-1,3-二氧杂戊环-2-一和硫醇中定量获得二(环状碳酸酯),三(环状碳酸酯)和四(环状碳酸酯)。只需将多功能环状碳酸酯与二亚乙基三胺和/或1,6-二氨基己烷混合,即可在25至80°C的温度下生成交联的PHU。这些材料易于放大,是涂料,粘合剂和树脂等许多应用中的潜在候选材料。所得聚合物的玻璃化转变温度为-1至16℃,热分解温度为190至230℃。©2011 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2011年