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学科主题: 高分子化学
题名: Polymethylene-b-Polystyrene Diblock Copolymer: Synthesis, Property, and Application
其他题名: 聚亚甲基b-聚苯乙烯两嵌段共聚物: 合成、性质与应用
作者: Chen JZ(陈健壮) ; Zhao QL(赵巧玲) ; Lv HC(吕会朝) ; Huang J(黄晋) ; Cao SK(曹少魁) ; Ma Z(马志)
通讯作者: 马志
刊名: J. Polym. Sci. Pol. Chem.
发表日期: 2010
卷: 48, 期:9, 页:1894-1900
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所; 郑州大学
英文摘要: The design and synthesis of well-defined polymethylene-b-polystyrene (PM-b-PS, M-n = 1.3 x 10(4)-3.0 x 10(4) g/mol; M-w/M-n (GPC) = 1.08-1.18) diblock copolymers by the combination of living polymerization of ylides and atom transfer radical polymerization (ATRP) was successfully achieved. The H-1 NMR spectrum and GPC traces of PM-b-PS indicated the successful extension of PS segment on the PM macroinitiator. The micellization behavior of such diblock copolymers in tetrahydrofuran were characterized by dynamic light scattering (DLS) and atomic force microscopy (AFM) techniques. The average aggregate sizes of PM-b-PS diblock copolymers with the same length of PM segment in tetrahydrofuran solution (1.0 mg mL(-1)) increases from 104.2 nm to 167.7 nm when the molecular weight of PS segment increases. The spherical precipitated aggregates of PM-b-PS diblock copolymers with an average diameter of 600 nm were observed by AFM. Honeycomb porous films with the average diameter of 3.0 mu m and 6.0 mu m, respectively, were successfully fabricated using the solution of PM-b-PS diblock copolymers in carbon disulfide via the breath-figure (BF) method under a static humid condition. The cross-sections of low density polyethylene (LDPE)/polystyrene (PS)/PM-b-PS and LDPE/polycarbonate (PC)/PM-b-PS blends were observed by scanning electron microscope and reveal that the PM-b-PS diblock copolymers are effective compatilizers for LDPE/PS and LDPE/PC blends. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1894-1900, 2010
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000277017800006
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/25387
Appears in Collections:分析化学研究室_期刊论文

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Recommended Citation:
Chen JZ,Zhao QL,Lv HC,et al. Polymethylene-b-Polystyrene Diblock Copolymer: Synthesis, Property, and Application[J]. J. Polym. Sci. Pol. Chem.,2010,48(9):1894-1900.
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