Fibers and Polymers

The Korean Fiber Society (한국섬유공학회)
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Preparation of Poly(vinyl acetate)/Clay and Poly(vinyl acetate)/ Poly(vinyl alcohol)/Clay Microspheres

  • Jung Hye-Min (Department of Textile System Engineering, Kyungpook National University) ;
  • Lee Eun-Mi (Department of Textile System Engineering, Kyungpook National University) ;
  • Ji Byung-Chul (Department of Textile System Engineering, Kyungpook National University) ;
  • Sohn Sung-Ok (Department of Textile System Engineering, Kyungpook National University) ;
  • Ghim Han-Do (Department of Textile System Engineering, Kyungpook National University) ;
  • Cho Hyun-Ju (Department of Home Economics Education, Kyungpook National University) ;
  • Han Young-A (Department of Obstetrics and Gynecology, Cornell Medical University) ;
  • Choi Jin-Hyun (Department of Natural Fiber Science, Kyungpook National University) ;
  • Yun Jae-Deuk (Department of Natural Fiber Science, Kyungpook National University) ;
  • Yeum Jeong-Hyun (Department of Natural Fiber Science, Kyungpook National University)
  • Published : 2006.09.01
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Abstract

Poly(vinyl acetate) (PVAc)/poly(vinyl alcohol) (PVA)/montmorillonite (MMT) clay nanocomposite microspheres with a core/shell structure have been developed via a suspension polymerization approach. In order to prepare the PVAc/ MMT and PVAc/PVA/MMT nanocomposite microspheres, which are promising precursor of PVA/MMT nanocomposite microspheres, suspension polymerization of vinyl acetate with organophilic MMT and heterogeneous saponification were conducted. A quaternary ammonium salt, cetyltrimethylammonium bromide, was mixed with the MMT in the monomer phase prior to the suspension polymerization. The rate of conversion decreased with an increase in MMT concentration. The incorporation of MMT into the PVAc was verified by FT-IR spectroscopy. Organic vinyl acetate monomers were intercalated into the interlayer regions of organophilic clay hosts and followed by suspension polymerization. Partially saponified PVA/MMT nanocomposite microspheres with a core/shell structure were successfully prepared by heterogeneous saponification.

Keywords

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