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  • Polymerization of MMA in polyHIPEs by RATRP
  • 来源:张发爱教授个人网站 2015-03-14
  • A series of polymerized high internal phase emulsions
    (polyHIPEs) with different cavities and windows
    (named PSD) were used as microreactors. Then methyl methacrylate
    (MMA) was polymerized in the spaces of the
    polyHIPE by reverse atom transfer radical polymerization
    (RATRP). The resulting materials and PMMA in the
    polyHIPEs were characterized by scanning electron microscopy,
    gel permeation chromatography, Fourier transform infrared
    spectroscopy, thermogravimetry, hydrogen nuclear
    magnetic resonance and differential scanning calorimetry.
    The results suggest that the monomer MMA is polymerized
    in the PSDs by RATRP. The confinement effect of the different
    cavities and pores is obvious but it weakens with the
    increase of the pore size. Compared with the conventional
    PMMA by RATRP, the number-average molecular weight
    and temperature of the initial decomposition of the PMMA
    obtained from PSDs is significantly high, which suggests that
    the confined space in the PSDs plays an active role in RATRP.
  • [来源:中国聚合物网]
  • 了解更多请进入: 张发爱教授个人网站
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