Exploring the versatility of hydrogels derived from living organocatalytic ring-opening polymerization
作者:Fredrik Nederberg、Vivian Trang、Russell C. Pratt、Sung-Ho Kim、John Colson、Alshakim Nelson、Curtis W. Frank、James L. Hedrick、Philippe Dubois、Laetitia Mespouille
DOI:10.1039/b920216a
日期:——
In this work we have bridged the use of mild and living organocatalytic ring-opening polymerization to facilitate the synthesis of cross-linked networks with an emphasis on hydrogels. Amidine-catalyzed ring-opening polymerization of bis-carbonate macromonomers in the presence of an alcohol provides the onset for the reaction and various building blocks issued from the initiator, macromonomer and comonomer can be used in different proportions to tailor the swelling behavior and mechanical integrity of final networks. Easy modifications of the building blocks additionally allow for finely tuning the hydrogel functionality and/or promoting responsiveness in the final structure.
在这项工作中,我们利用温和的活有机催化开环聚合技术促进了交联网络的合成,重点是水凝胶。双碳酸酯大单体在醇类存在下的脒催化开环聚合反应提供了反应的起始阶段,由引发剂、大单体和共聚单体生成的各种构筑模块可以不同比例使用,以定制最终网络的溶胀行为和机械完整性。此外,通过对构筑模块进行简便的修改,还可以对水凝胶的功能性进行微调,并/或提高最终结构的响应性。