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Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (9): 1126-1130. Previous Articles     Next Articles

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基于聚亚甲基的三嵌段聚合物: 合成及其多孔薄膜的制备

吕会朝1,2，徐慎刚1，赵巧玲2，黄晋2，曹少魁*,1，马志*,2   

  1. (1郑州大学材料科学与工程学院 郑州 450052)
    (2中国科学院上海有机化学研究所 上海 200032)
  • 投稿日期:2010-11-24 修回日期:2010-12-24 发布日期:2011-01-04
  • 通讯作者: 马志 E-mail:mazhi728@sioc.ac.cn

Block Copolymers Based on Polymethylene: Synthesis and Fabrication of Their Porous Films

Lü Huichao1,2 Xu Shengang1 Zhao Qiaoling2 Huang Jin2 Cao Shaokui*,1 Ma Zhi*,2   

  1. (1 School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052)
    (2 Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032)
  • Received:2010-11-24 Revised:2010-12-24 Published:2011-01-04

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Di- and tri-block copolymers based on polymethylene were synthesized via the combination of living polymerization of ylides and atomic transfer radical polymerization (ATRP). Firstly, hydroxyl terminated polymethylene (PM-OH) was synthesized via living polymerization of ylides followed by oxidation. The macroinitiator (PM-Br) was obtained by the reaction of PM-OH and 2-bromo-2-methylproplonyl bromide, then initiated the ATRP of tert-butyl acrylate to obtain PM-b-P-t-BA diblock copolymers. Subsequently, PM-b-P-t-BA-b-PS triblock copolymers were prepared using ATRP of styrene. Porous films of such di-block and tri-block copolymers were fabricated via breath-figure method with chloroform and carbon disulfide as solvent, respectively. The morphology of such porous film was observed by scanning electron microscopy (SEM). The effects of PS segment and temperature on the morphology of porous film were investigated.

Key words: polymethylene, block copolymer, breath figure, porous film