Synthesis of Star like Random Copolymers from Resorcinarene-based Alkoxyamine Initiator via Nitroxide Mediated Free Radical Polymerization

  • Abraham, Sinoj (Department of Polymer Science and Engineering, Pusan National University) ;
  • Choi, Jae-Ho (Department of Polymer Science and Engineering, Pusan National University) ;
  • Ha, Chang-Sik (Department of Polymer Science and Engineering, Pusan National University) ;
  • Kim, Il (Department of Polymer Science and Engineering, Pusan National University)
  • Published : 2006.10.13

Abstract

The synthesis of an octafunctional resorcinarene based initiator for nitroxide mediated polymerization and its ability to yield random star copolymers of styrene and methyl methacrylate is studied. The effect of the initiator conformations towards its activity and the conditions that permit the formation of well-defined star block copolymers is also investigated in detail. The characterization of the initiator and the polymers were carried out by various spectro-analytical techniques. Well-defined random copolymers were obtained with controlled molecular weight and low PDI depending on the monomer feed.

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