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Grafting of n-butyl acrylate and N,N′-dimethyl acrylamide from poly(divinylbenzene) microspheres by RAFT polymerization

Australian Journal of Chemistry, ISSN: 0004-9425, Vol: 58, Issue: 6, Page: 468-471
2005
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Metrics Details

  • Citations
    31
    • Citation Indexes
      31
  • Captures
    20

Conference Paper Description

N,N′-Dimethyl acrylamide and n-butyl acrylate have been grafted from crosslinked poly(divinylbenzene) core microspheres by both reversible addition-fragmentation chain transfer (RAFT) polymerization and conventional free radical polymerization. The microspheres were prepared by precipitation polymerization utilizing 55 and 80 wt.% divinylbenzene (DVB), respectively. The RAFT agent cumyl dithiobenzoate (CDB) was utilized and grafting was performed in toluene at 80°C with 2,2′-azoisobutyronitrile (AIBN) as thermal initiator. Particle weights increased up to 6% for poly(n-butyl acrylate) and up to 15% for poly(N,N′-dimethyl acrylamide). Grafting from poly(DVB-55) microspheres results in a higher particle weight increase than grafting from poly(DVB-80) microspheres while using the same RAFT agent concentrations. The particle weight increase is approximately higher by a factor of two. The grafted microspheres were characterized by attenuated total reflection (ATR) IR spectroscopy and scanning electron microscopy. © CSIRO 2005.

Bibliographic Details

Raymond Joso; Martina H. Stenzel; Thomas P. Davis; Christopher Barner-Kowollik; Leonie Barner

CSIRO Publishing

Chemistry

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