How the Polymerization Procedures Affect the Morphology of the Block Copolymer Nanoassemblies: Comparison between Dispersion RAFT Polymerization and Seeded RAFT Polymerization
How the Polymerization Procedures Affect the Morphology of the Block Copolymer Nanoassemblies: Comparison between Dispersion RAFT Polymerization and Seeded RAFT Polymerization
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聚合程序如何影响嵌段共聚物纳米组装体的形态：分散 RAFT 聚合与种子 RAFT 聚合之间的比较
DOI：
10.1021/acs.macromol.6b01756
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发表时间：
2016-10
期刊：
影响因子：
5.5
通讯作者：
Zhang Wangqing
中科院分区：
文献类型：
--
作者：
Zhou Heng;Liu Chonggao;Qu Yaqing;Gao Chengqiang;Shi Keyu;Zhang Wangqing
聚合诱导自组装（比萨）是一种原位合成嵌段共聚物纳米组装体的有效方法，聚合条件与嵌段共聚物的形貌相关。在这项研究中，三个比萨配方，例如，对聚乙二醇大分子RAFT试剂介导的分散RAFT聚合、种子分散RAFT聚合和种子乳液RAFT聚合进行了比较研究。研究结果表明，分散RAFT聚合反应的进行速度比种子分散RAFT聚合和种子乳液RAFT聚合两种比萨PISA体系要慢得多。此外，研究结果还表明，通过三种比萨方法制备的聚乙二醇-嵌段聚苯乙烯（PEG 45-b-PS）嵌段共聚物的嵌段共聚物形态有很大差异。即，分散RAFT聚合提供囊泡，种子分散RAFT聚合提供囊泡和多孔纳米球的混合物，种子乳液RAFT聚合后得到多孔纳米球。
Polymerization-induced self-assembly (PISA) is proven to be a powerful approach of in situ synthesis of block copolymer (BCP) nanoassemblies, and polymerization conditions are found to be correlative to the block copolymer morphology. In this study, three PISA formulations, e.g., the poly(ethylene glycol) macro-RAFT agent mediated dispersion RAFT polymerization, seeded dispersion RAFT polymerization, and seeded emulsion RAFT polymerization, are comparatively investigated. Our results reveal that dispersion RAFT polymerization undergoes much slower than other two PISA formulations of seeded dispersion RAFT polymerization and seeded emulsion RAFT polymerization. Besides, the results reveal that the BCP morphology of poly(ethylene glycol)-block-polystyrene (PEG45-b-PS) produced via three PISA cases is much different. That is, dispersion RAFT polymerization affords vesicles, seeded dispersion RAFT polymerization affords the mixture of vesicles and porous nanospheres, and seeded emulsion RAFT polymerization af...
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影响因子：
4.6
作者：
Kang, Yan;Pitto-Barry, Anais;O'Reilly, Rachel K.
通讯作者：
O'Reilly, Rachel K.
通过RAFT分散共聚促进二嵌段共聚物纳米物体的形貌转变
影响因子：
4.6
作者：
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影响因子：
4.6
作者：
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通讯作者：
Yiwen Pei;K. Jarrett;M. Saunders;P. Roth;C. Buckley;A. Lowe
影响因子：
4.9
作者：
X. Xiao;Shangjin He;Meihan Dan;Fei Huo;Wangqing Zhang
通讯作者：
X. Xiao;Shangjin He;Meihan Dan;Fei Huo;Wangqing Zhang
RAFT乙醇分散聚合中六方填充空心环的形成及形态转变
影响因子：
4.6
作者：
Zhang Wen-Jian;Hong Chun-Yan;Pan Cai-Yuan
通讯作者：
Pan Cai-Yuan