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Acta Chimica Sinica >

2012 , Vol. 70 >Issue 9: 1125 - 1130

DOI: https://doi.org/10.6023/A1112264

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

  • L? Huichao ,
  • Zhang Chengpan ,
  • Huang Jin ,
  • Zhao Qiaoling ,
  • Ma Zhi ,
  • Xiao Jichang
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  • 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 date: 2011-12-26

  Revised date: 2012-03-07

  Online published: 2012-05-18

Supported by

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

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Abstract

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

Cite this article

L? Huichao , Zhang Chengpan , Huang Jin , Zhao Qiaoling , Ma Zhi , Xiao Jichang . Polystyrene-co-poly(2,3,4,5,6-pentafluoro styrene) Copolymers: Synthesis and Fabrication of Their Porous Films[J]. Acta Chimica Sinica, 2012 , 70(9) : 1125 -1130 . DOI: 10.6023/A1112264

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