摘要
近年来,通过可逆加成断裂链转移(reversible addition-fragmentation chain transfer,RAFT)聚合调控的聚合诱导自组装(polymerization-induced self-assembly,PISA)已成功制备出不同形貌、尺寸、表面化学特性的嵌段共聚物纳米粒子。通过功能化负载这些粒子可以制备出一些具有优异功能的聚合物材料。本文综述了在非均相聚合体系中通过RAFT聚合方法进行PISA制备出的不同形貌的嵌段共聚物聚集体,介绍了不同聚合方法中形貌发展的过程、适用单体以及影响形貌转变的因素等。此外,本文还介绍了利用PISA方法在粒子功能化负载方面所取得的进展以及PISA的潜在应用和局限。
Recently,polymerization-induced self-assembly（PISA）has been used to prepare block copolymer nano-objects of controllable size, shape, and surface chemistry via reversible addition-fragmentation chain transfer （RAFT） polymerization methods. Some polymer materials with excellent functions were further obtained by functional encapsulation with these copolymer nano-objects. This paper gave a general overview about preparing multiple morphologies of block copolymer aggregates via RAFT-mediated PISA in heterogeneous polymerization system, and introduced the process of morphological development under different polymerization methods, the adapted monomers and the factors influencing the morphological transition. In addition, the advances of PISA in the functional particles encapsulation, the potential applications and limitations of PISA concepts were also presented.
出处
《高分子通报》
CAS
CSCD
北大核心
2018年第1期23-37,共15页
Polymer Bulletin
基金
国家自然科学基金项目(51073010)
关键词
聚合诱导自组装
可控自由基聚合
负载功能化
非均相聚合
Polymerization-induced self-assembly （PISA）
Reversible addition-fragmentation chain transfer （RAFT）
Functional encapsulation
Heterogeneous polymerization
