Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Dispersion Polymerization of Styrene Using Poly(N-vinylpyrrolidone) with Photoiniferter Groups

Photoiniferter기를 갖는 poly(N-vinylpyrrolidone) 안정제를 이용한 Styrene의 분산중합

  • Lee, Kyung-Min (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University) ;
  • Yu, Young-Chang (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University) ;
  • Youk, Ji-Ho (Department of Advanced Fiber Engineering, Division of Nano-Systems, Inha University)
  • 이경민 (인하대학교 나노시스템공학부) ;
  • 유영창 (인하대학교 나노시스템공학부) ;
  • 육지호 (인하대학교 나노시스템공학부)
  • Received : 2011.11.08
  • Accepted : 2011.12.02
  • Published : 2011.12.31
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Abstract

Dispersion polymerization of styrene was performed in the presence of poly(N-vinylpyrrolidone)(PVP) with the photoiniferter groups as the stabilizer under UV radiation. Poly(N-vinylpyrrolidone-co-4-vinylbenzyl chloride) [P(VP-co-VBC)] was first synthesized by a free radical polymerization. The VBC units were then, modified to dithiobenzoate and diethyldithiocarbamate as the photoiniferter groups. The contents of the photoiniferter groups were 1.7, 2,4 and 4.2 mol%. Polystyrene(PSt) particles prepared using PVP stabilizers with dithiobenzoate groups(PVPDTB) had a spherical shape. On the other hand, PSt particles obtained using PVP stabilizers with diethyldithiocarbamate groups(PVP-DTC) showed a crumpled appearance. The mean diameters of the PSt particles decreased with increase in the contents of photoiniferter groups in the PVP stabilizers. Nano-sized PSt particles(80-90 nm) could be synthesized by using PVP-DTB. PSt particles prepared using PVP-DTC had a crosslinked structure.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea

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