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题名: Microphase separation of poly(tert-butyl methacrylate)-block-polystyrene diblock copolymers to form perforated lamellae
作者: Yao, Dongdong2; Zhang, Ke2; Chen, Yongming1, 2
关键词: Block copolymer ; Bulk microphase separation ; Perforated lamellar structure ; Perforated nanosheets
刊名: POLYMER
发表日期: 2016-06-28
卷: 94, 页:1-7
收录类别: SCI
英文摘要: Perforated lamellar (PL) microphase structure of block copolymers in the bulk is rarely observed. Herein, formation of the PL structure from simple block copolymer, poly(tert-butyl methacrylate)-block-polystyrene (PtBMA-b-PS) prepared by reversible additionefragmentation chain transfer (RAFT) mediated radical polymerization, is reported. The PL phase consists of alternating layers of PS and PtBMA microdomains, among which the PS layers contain ordered cylindrical domains of PtBMA. It is confirmed that the PL phase is located between the cylindrical phase and lamellar phase. In methanol, the microphaseseparated sample is readily split into individual core/shell nanosheets with perforated glassy PS core. The PtBMA domains are densely attached both as the shells along PS sheets and as passages with a hexagonal pattern. The passage has a diameter of ca. 12 nm and an average periodic distance of 31 nm. (C) 2016 Elsevier Ltd. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36118
Appears in Collections:高分子物理与化学实验室_期刊论文

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作者单位: 1.Sun Yat Sen Univ, Key Lab Polymer Composite & Funct Mat, Guangdong Prov Key Lab High Performance Polymer B, Minist Educ,Dept Polymer & Mat Sci,Sch Chem & Che, Guangzhou 510275, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
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