Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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New Tactics for Stereospecificity in Metallocene-based Olefin Polymerization

  • Kim, Seong-Kyun (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology) ;
  • Park, Sung-Jin (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology) ;
  • Kim, Hwa-Kyu (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology) ;
  • Yoon, Seung-Woong (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology) ;
  • Lee, Jun-Seong (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology) ;
  • Park, Myung-Hwan (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology) ;
  • Do, Young-Kyu (Department of Chemistry and School of Molecular Science BK-21, Center for Molecular DIesign aInd Synthesis, Korea Advanced Institute of Science and Technology)
  • Published : 2006.10.13
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Abstract

The stereochemical control in polypropylenes and styrene-ethylene copolymers based on homogeneous single-site polymerization catalysts has received great attention since the stereocpecificity is one of the key factors in tailoring the polymer properties. Thus, we have developed new tactics for isospecificity in propylene polymerization with the unbridged metallocenebased systems and syndiospecific styrene-styrene sequence in styrene-ethylene copolymerization with the group 4 metallocene system. Brief details of the synthesis, structures and the polymerization behavior of a set of new metallocene catalysts will be presented.

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