Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (7): 776-780.DOI: 10.11944/j.issn.1000-0518.2018.07.170331

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Preparation of Macromolecular Ultra-violet Absorber and Its Application in Poly(vinylidene fluoride)

Li DONGab,Xiangdong LIUa,Zhengrong XIONGa,Yuming YANGa*()   

  1. aLaboratory of Polymer Composites Engineering,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    bUniversity of Science and Technology of China,Hefei 230026,China
  • Received:2017-09-12 Accepted:2017-11-10 Published:2018-07-06 Online:2018-07-06
  • Contact: Yuming YANG

Abstract:

The macromolecular ultraviolet(UV) absorber P(MMA-co-BPMA) was synthesized by copolymerization of 2-hydroxy-4-(3-methacryloxy-2-hydroxylpropoxy) benzophenone(BPMA) and methylmethacrylate(MMA) through atom transfer radical polymerization(ATRP). The UV-absorbing poly(vinylidene fluoride)(PVDF) composite membranes were made by blend coating. The structure and property of BPMA and P(MMA-co-BPMA) were characterized by nuclear magnetic resonance spectroscopy(NMR), gel permeation chromatography(GPC) and differential scanning calorimeter(DSC). UV absorbing property of the obtained composite membranes was investigated by UV-Vis spectroscopy. The results demonstrate that the relative molecular mass polydispersity index(PDI) of P(MMA-co-BPMA) is 1.11. When the mass fraction of BPMA is 0.68%, the UV transmittance of P(MMA-co-BPMA)/PVDF composite membrane decreases to less than 0.4% in the range of 200~345 nm. In addition, copolymerization of the UV absorber effectively prevents the out-migration as demonstrated in the extraction experiment.

Key words: ultra-violet absorbing, poly(vinylidene fluoride), copolymerization, blends