Thiol-ene vs. ADMET: a complementary approach to fatty acid-based biodegradable polymers
作者:Oĝuz Türünç、Michael A. R. Meier
DOI:10.1039/c0gc00773k
日期:——
The increasing need for biodegradable polymers in medical applications, attempts to use renewable resources instead of fossil resources for material synthesis, and highly efficient polymerization methods that meet the requirements of green chemistry draw attention to fatty acid-based biodegradable polymers. In the present study, we have prepared a set of anhydride and ester functional biodegradable polymers from undec-10-enoic acidviaADMET polymerization reactions and/or thiol-ene click reactions. The efficiency of these polymerization methods and the thermal, as well as hydrolytic, stability properties of the polymers were evaluated and compared to each other. The results reveal that the polymers exhibit melting points in the range 44–58 °C, which is higher than physiological temperature, and that polyanhydrides degrade considerably faster in solution than structurally similar polyesters.
医疗应用对生物可降解聚合物的需求日益增长,人们试图利用可再生资源代替化石资源进行材料合成,以及符合绿色化学要求的高效聚合方法,这些都吸引了人们对脂肪酸基生物可降解聚合物的关注。在本研究中,我们以十一碳-10-烯酸为原料,通过 ADMET 聚合反应和/或硫醇-烯点击反应制备了一系列酸酐和酯官能团可生物降解聚合物。我们对这些聚合方法的效率以及聚合物的热稳定性和水解稳定性进行了评估和比较。结果表明,聚合物的熔点在 44-58 °C 之间,高于生理温度,而且聚酐在溶液中的降解速度比结构相似的聚酯快得多。