Star amphiphilic block copolymers: synthesis via polymerization-induced self-assembly and crosslinking within nanoparticles, and solution and interfacial properties

被引：22
|
作者：
Qian, Sijia [1 ]
Liu, Rui [1 ]
Han, Guang [2 ]
Shi, Keyu [1 ]
Zhang, Wangqing [1 ,3 ]
机构：
[1] Nankai Univ, Inst Polymer Chem, Coll Chem, Key Lab Funct Polymer Mat,Minist Educ, Tianjin 300071, Peoples R China
[2] Beijing Oriental Yuhong Waterproof Technol Co Ltd, State Key Lab Special Funct Waterproof Mat, Beijing 100123, Peoples R China
[3] Nankai Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300071, Peoples R China
来源：
POLYMER CHEMISTRY | 2020年 / 11卷 / 14期
基金：
美国国家科学基金会;
关键词：
AQUEOUS DISPERSION POLYMERIZATION; IN-SITU SYNTHESIS; RAFT POLYMERIZATION; FACILE SYNTHESIS; NANO-ASSEMBLIES; DOUBLE-NETWORKS; PHASE-DIAGRAMS; POLYMERS; AGENT; POLYSTYRENE;
D O I：
10.1039/c9py01656b
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The star amphiphilic block copolymer of star-[poly(N-isopropylacrylamide)-block-polystyrene] [s-PNIPAM-b-PS] is synthesized via RAFT polymerization by combining polymerization-induced self-assembly (PISA) and crosslinking within the linear block copolymer nanoparticles. This strategy affords convenient synthesis of star s-PNIPAM-b-PS with a high molecular weight and a narrow molecular weight distribution. This star s-PNIPAM-b-PS exists as dispersed nanospheres in both common solvents and block-selective solvents, and the size of star s-PNIPAM-b-PS nanospheres is not seriously affected by the polymer concentration, which is different from that of the linear poly(N-isopropylacrylamide)-block-polystyrene [PNIPAM-b-PS] block copolymer counterpart. The solution properties, thermoresponse and interfacial properties of star s-PNIPAM-b-PS are investigated, which were found to be significantly different from those of linear PNIPAM-b-PS.
引用
收藏
页码：2532 / 2541
页数：10
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