GRGDS-Functionalized Poly(lactide)-<i>graft</i>-poly(ethylene glycol) Copolymers: Combining Thiol–Ene Chemistry with Staudinger Ligation
作者:Dorothee E. Borchmann、Niels ten Brummelhuis、Marcus Weck
DOI:10.1021/ma4005633
日期:2013.6.11
A tri(ethylene glycol)-containing lactide analogue was synthesized via thiol–ene chemistry between a bifunctional triethylene glycol and allyl lactide. Subsequent tin octoate catalyzed ring-opening polymerization yielded well-defined poly(lactide)-graft-poly(ethylene glycol) copolymers with molecular weights of 6 × 103 g/mol and polydispersity indices of 1.6. The tri(ethylene glycol) chains along the
通过双功能三甘醇和烯丙交酯之间的硫醇-烯化学合成了含有三(乙二醇)的丙交酯类似物。随后的辛酸锡催化的开环聚合产生了明确定义的聚(丙交酯)-接枝-聚(乙二醇)共聚物,其分子量为 6 × 10 3 g/mol,多分散指数为 1.6。沿着共聚物的三(乙二醇)链包含能够进行有效的聚合后官能化的叠氮化物末端。该策略的效用通过成功的 Staudinger 连接来安装 Gly-Arg-Gly-Asp-Ser (GRGDS) 肽得到证明。