Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (9): 1125-1130.DOI: 10.6023/A1112264 Previous Articles     Next Articles

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聚苯乙烯-co-聚(2,3,4,5,6-五氟苯乙烯)共聚物: 合成及其多孔薄膜的制备

吕会朝a, 张成潘a,b, 黄晋a, 赵巧玲a, 马志a, 肖吉昌a,b   

  1. a. 中国科学院上海有机化学研究所 上海 200032;
    b. 中国科学院有机氟化学重点实验室 中国科学院上海有机化学研究所 上海 200032
  • 投稿日期:2011-12-26 修回日期:2012-03-07 发布日期:2012-05-18
  • 通讯作者: 马志; 肖吉昌 E-mail:mazhi728@sioc.ac.cn; jchxiao@sioc.ac.cn
  • 基金资助:

    中国科学院有机氟化学重点实验室开放基金资助项目.

Polystyrene-co-poly(2,3,4,5,6-pentafluoro styrene) Copolymers: Synthesis and Fabrication of Their Porous Films

Lü Huichaoa, Zhang Chengpana,b, Huang Jina, Zhao Qiaolinga, Ma Zhia, Xiao Jichanga,b   

  1. a. Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032;
    b. Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032
  • Received:2011-12-26 Revised:2012-03-07 Published:2012-05-18
  • Supported by:

    Project supported by Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.

Well-defined polystyrene-co-poly(2,3,4,5,6-pentafluoro styrene) (PS-co-PPFS) copolymers were synthesized by atomic transfer radical polymerization (ATRP) in trifluorotoluene, fluorinated ionic liquid and trifluorotoluene/fluorinated ionic liquid solvent systems, respectively. The chain structure and component of such copolymers were characterized by 1H NMR, 19F NMR, elemental analysis and GPC. Porous films of PS-co-PPFS copolymers were fabricated by static breath-figure method in CS2, CHCl3 and CH2Cl2, respectively. The morphologies of such porous films were observed by scanning electron microscopy (SEM) and compared with those of PS homopolymer with similar molecular weight. The results showed that PS-co-PPFS copolymers with narrow molecular weight distribution (Mn=5200~7900 g·mol-1, i>Mw/Mn= 1.12~1.22) can be synthesized via ATRP in trifluorotoluene and fluorinated ionic liquid, respectively. The SEM observation indicated that PS-co-PPFS copolymer porous films can be fabricated with CS2, CHCl3 and CH2Cl2 as solvent, respectively. While, different from PS analogues, PS-co-PPFS copolymer porous films showed less ordered pore structures with two different average pore sizes. The pores of such film fabricated in CHCl3 were in better order with two average pore sizes of 0.75 and 0.37 μm, respectively.

Key words: polystyrene-co-poly(2,3,4,5,6-pentafluoro styrene) copolymer, atomic transfer radical polymerization, breath figure, porous film