Synthesis of Thermosensitive Conjugated Triblock Copolymers by Sequential Click Couplings for Drug Delivery and Cell Imaging
作者:Kaicheng Deng、Xuezhi Zhao、Fangjun Liu、Jinlei Peng、Chao Meng、Yupeng Huang、Liwei Ma、Cong Chang、Hua Wei
DOI:10.1021/acsbiomaterials.9b00664
日期:2019.7.8
and PNIPAAm-based amphiphilic triblock copolymer, PF11-b-PNIPAAm120-b-poly(oligo(ethylene glycol) monomethyl ether methacrylate)17 (PF11-b-PNIPAAm120-b-POEGMA17), with a well-defined structure by a strategy of sequential click couplings between Suzuki-coupling-generated PF and atom-transfer radical polymerization (ATRP)-produced PNIPAAm and POEGMA. The as-prepared triblock copolymers can self-assemble
出色的发光片段和生物相关信号响应部分的完美结合可以产生先进的聚合物输送系统,同时具有相对于癌症治疗学而言有利的诊断和治疗功能。尽管已经广泛开发了基于荧光聚芴(PF)或热响应性聚(N-异丙基丙烯酰胺)(PNIPAAm)的聚合物输送系统,但由PF嵌段,PNIPAAm序列和亲水部分组成的三元聚合物配方的制备仍然很少由于可能难以整合用于聚合物合成的不同合成策略的困难,因此进行了探索。为此,在本文中我们报道了基于PF和PNIPAAm的两亲三嵌段共聚物PF 11的设计和可控合成。- b -PNIPAAm 120 - b -聚(低聚(乙二醇)单甲醚甲基丙烯酸酯)17(PF 11 - b -PNIPAAm 120 - b -POEGMA 17),通过铃木耦合生成的PF与原子转移自由基聚合(ATRP)生成的PNIPAAm和POEGMA之间的顺序点击耦合策略,具有明确定义的结构。所制备的三嵌段共聚物可以自组装