随着化石资源的日益枯竭以及人们环保意识的增强,基于可再生资源的高分子材料越来越受到人们的重视。木质纤维素是地球上储量最丰富、分布最广泛的生物质资源,通过化学或生物转化的方法可获得丰富多样的的生物基平台化学品,其中部分已成功用于生物基合成高分子。如香草醛作为一种典型的木质素转化的芳香化合物,已经实现工业化的生产,基于香草醛开发新型的生物基高分子备受关注。但是如何高效、绿色将香草醛转化为可聚合单体,实现其高效、可控聚合是挑战。
近期,贵州大学材料与冶金学院高分子材料与工程系谢海波教授课题组在国际绿色化学权威期刊《Green Chemistry》(一区,IF=9.4)发表了题为“Introducing the Tishchenko Reaction into Sustainable Polymer Chemistry”的研究论文,第一作者为我院2017级硕士研究生仁天华,指导老师谢海波教授、陈沁副教授,并被主编推荐为后封面论文。文章工作历时四年时间,首次报道了将季先科反应成功应用于可聚合单体的合成,制备了新型含有羧酸酯官能团的二烯烃单体,再利用温和的巯烯点击聚合和非环二烯易位聚合方法,可控合成高分子量的的系列新型生物基聚酯,并对聚酯做了后改性研究。本研究提供了聚酯合成的新思路、新策略,为生物质高效利用,生物基合成高分子新材料的分子设计、可控制备及应用,提供了重要的理论依据和技术参考。审稿人一致认为论文具有非常重要的科学价值和应用前景。“This is a strong paper with the potential to lead to significant further research and subsequent industrial use of bio-based starting materials in the preparation of significantly more sustainable polymers than their petrochemical-based alternatives. Aside from a few minor grammatical errors which should be corrected before publication, I recommended acceptance by Green Chemistry”,“The manuscript presents the preparation of α,ω-diene functionalized carboxylic ester monomers by combined Williamson and Tishchenko reactions using renewable starting materials. It also demonstrates the preparation of poly(thioether esters) and unsaturated polyesters from the monomers. The scientific merit of the paper is very high. I highly recommend it to be published without any correction”。
原文链接:https://pubs.rsc.org/en/content/articlelanding/2020/gc/c9gc03926k#!divAbstract