| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
고분자 합성 |
| 제목 |
INFLUENCE OF BRIDGE STRUCTURE ON CATALYTIC BEHAVIOR OF DINUCLEAR CONSTRAINED GEOMETRY CATALYSTS IN ETHENE/1-OCTENE COPOLYMERIZATION |
| 초록 |
Dinuclear Constrained Geometry Catalysts (DCGCs) of the general formula {TiCl2[N(tert-butyl) Si(Me)2]C9H5}2 {(CH2)n[C6H4] (CH2)n} [1(n=0), 2(n=1), 3(n=2)] were prepared by treating two equivalents of TiCl3(THF)3 with the corresponding tetralithium salt of ligand followed by oxidation by AgCl. DCGC catalyst was characterized by 1H NMR, 13C NMR and elemental analysis. Ethene was copolymerized with 1-octene using methylalumoxane (MAO) activated three different DCGCs. Polymerization behavior was analyzed with respect to catalyst activity, 1-octene incorporation, copolymer microstructure, and molecular weight. Complex 3 showed the highest catalytic activity, produced the highest molecular weight polymer, and promoted high 1-octene incorporation. All produced polymers were random poly(ethene-co-octene-1) without any stereoregular microstructure and melting point. |
| 저자 |
진상웅, 웽티레탄, 누옌티듀휴옌, 류원석, 노석균
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| 소속 |
영남대 |
| 키워드 |
metallocene; DCGC; ethylene/octene-1 polymerization
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| E-Mail |
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