Department of Chemistry, ‡Department of Chemical Engineering, §Department of Materials Science and Engineering, and ⊥Department of Biomedical Engineering, Texas A&M University , College Station, Texas 77842-3012, United States.
ACS Appl Mater Interfaces. 2014 Oct 22;6(20):17370-5. doi: 10.1021/am506087e. Epub 2014 Oct 7.
Polycarbonate networks derived from the natural product quinic acid that can potentially return to their natural building blocks upon hydrolytic degradation are described herein. Solvent-free thiol-ene chemistry was utilized in the copolymerization of tris(alloc)quinic acid and a variety of multifunctional thiol monomers to obtain poly(thioether-co-carbonate) networks with a wide range of achievable thermomechanical properties including glass transition temperatures from -18 to +65 °C and rubbery moduli from 3.8 to 20 MPa. The network containing 1,2-ethanedithiol expressed an average toughness at 25 and 63 °C of 1.08 and 2.35 MJ/m(3), respectively, and an order-of-magnitude increase in the average toughness at 37 °C of 15.56 MJ/m(3).
本文描述了一种源自天然产物奎尼酸的聚碳酸酯网络，在水解降解后有可能回到其天然构建块。在无溶剂的硫醇-烯反应中，三（烯丙基）奎宁酸与多种多功能硫醇单体共聚，得到了具有广泛可实现热机械性能的聚（硫醚-碳酸酯）网络，玻璃化转变温度范围为-18 至+65°C，橡胶态模量为 3.8 至 20 MPa。含有 1,2-乙二硫醇的网络在 25 和 63°C 时的平均韧性分别为 1.08 和 2.35 MJ/m³，在 37°C 时的平均韧性增加了一个数量级，达到 15.56 MJ/m³。
