RAFT Dispersion Polymerization in the Presence of Block Copolymer Nanoparticles and Synthesis of Multicomponent Block Copolymer Nanoassemblies

被引：20
|
作者：
Qu, Shuwen [1 ]
Liu, Rui [1 ]
Duan, Wenfeng [3 ]
Zhang, Wangqing [1 ,2 ]
机构：
[1] Nankai Univ, Coll Chem, Inst Polymer Chem, Key Lab Funct Polymer Mat,Minist Educ, Tianjin 300071, Peoples R China
[2] Nankai Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300071, Peoples R China
[3] Beijing Oriental Yuhong Waterproof Technol Co Ltd, State Key Lab Special Funct Waterproof Mat, Beijing 100123, Peoples R China
来源：
MACROMOLECULES | 2019年 / 52卷 / 14期
基金：
美国国家科学基金会;
关键词：
POLYELECTROLYTE-STABILIZED NANOPARTICLES; CHAIN EXCHANGE KINETICS; NANO-OBJECTS; PHOTO-PISA; DIBLOCK; MICELLES; ASSEMBLIES; WATER; TEMPERATURE; MORPHOLOGY;
D O I：
10.1021/acs.macromol.9b00879
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Multicomponent block copolymer nanoassemblies are constructed by two or more than two block copolymers. Herein, multicomponent block copolymer nanoparticles constructed with poly(4-vinylpyridine)-block-polystyrene (P4VP-b-PS) and poly(ethylene glycol)-block-polystyrene (PEG-b-PS) are synthesized by RAFT dispersion polymerization of styrene employing poly(ethylene glycol) trithiocarbonate (PEG-TTC) as the macromolecular chain transfer agent (macro-CTA) in the presence of P4VP-b-PS nanoparticles, which are presynthesized by ATRP dispersion polymerization. It is found that multicomponent block copolymer nanoassemblies instead of the mixture of the PEG-b-PS nanoassemblies and the P4VP-b-PS nanoparticles are formed under suitable conditions. The possibility how multicomponent block copolymer nanoassemblies are synthesized is discussed, and the evolution of the size and/or morphology of the multicomponent block copolymer nanoassemblies is investigated.
引用
收藏
页码：5168 / 5176
页数：9
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