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学科主题: 高分子化学
题名: Synthesis of well-defined amphiphilic polymethylene-b-poly(e-caprolactone)-b-poly(acrylic acid) triblock copolymer via a combination of polyhomologation, ring-opening polymerization, and atom transfer radical polymerization
其他题名: 利用同源聚合、开环聚合与原子转移自由基聚合相结合的方法合成结构可控的两亲性聚亚甲基-b-聚己内酯-b-聚丙烯酸三嵌段共聚物
作者: Yuan C(袁聪) ; Lv HC(吕会朝) ; Li QZ(李启蒸) ; Yang S(杨森) ; Zhao QL(赵巧玲) ; Huang J(黄晋) ; Wei LH(魏柳荷) ; Ma Z(马志)
通讯作者: 魏柳荷 ; 马志
刊名: J. Polym. Sci. Pol. Chem.
发表日期: 2012
卷: 50, 期:12, 页:2398-2405
收录类别: SCI
部门归属: 中科院上海有机化学研究所; 郑州大学
英文摘要: Well-defined amphiphilic polymethylene-b-poly(e-caprolactone)-b-poly(acrylic acid) (PM-b-PCL-b-PAA) triblock copolymers were synthesized via a combination of polyhomologation, ring-opening polymerization (ROP), and atom transfer radical polymerization (ATRP). First, hydroxyl-terminated polymethylenes (PM-OH; Mn = 1100 g mol-1; Mw/Mn = 1.09) were produced by polyhomologation followed by oxidation. Then, the PM-b-PCL (Mn = 10,000 g mol-1; Mw/Mn = 1.27) diblock copolymers were synthesized via ROP of e-caprolactone using PM-OH as macroinitiator and stannous octanoate (Sn(Oct)2) as a catalyst. Subsequently, the macroinitiator transformed from PM-b-PCL in high conversion initiated ATRPs of tert-butyl acrylate (tBA) to construct PM-b-PCL-b-PtBA triblock copolymers (Mn = 11,00014,000 g mol-1; Mw/Mn = 1.241.26). Finally, the PM-b-PCL-b-PAA triblock copolymers were obtained via the hydrolysis of the PtBA segment in PM-b-PCL-b-PtBA triblock copolymers. The chain structures of all the polymers were characterized by gel permeation chromatography, proton nuclear magnetic resonance, and Fourier transform infrared spectroscopy. Porous films of such triblock copolymers were fabricated by static breath-figure method and observed by scanning electron microscope. The aggregates of PM-b-PCL-b-PAA triblock copolymer were studied by transmission electron microscope. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
语种: 英语
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WOS记录号: WOS:000303758200010
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/28399
Appears in Collections:高分子材料研究室_期刊论文

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Recommended Citation:
Yuan C,Lv HC,Li QZ,et al. Synthesis of well-defined amphiphilic polymethylene-b-poly(e-caprolactone)-b-poly(acrylic acid) triblock copolymer via a combination of polyhomologation, ring-opening polymerization, and atom transfer radical polymerization[J]. J. Polym. Sci. Pol. Chem.,2012,50(12):2398-2405.
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