| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Structure-Activity Relationship by Electronic Alteration at para-Position Aryloxide Ligand in Half-Metallocene Titanium Complexes: Synthesis, Characterization, and Catalytic Activities of para-Substituted Aryloxide (R= F, Cl, H, Me, i-Pr, t-Bu, OMe) Cp*Ti(IV) |
| 초록 |
The attachment of electron-donating or electron-withdrawing aryl groups to the 4-position of the 2-phenylaryloxide ligand via Suzuki coupling was achieved. Corresponding half-titanocene complexes were prepared by reacting the electron-donating or electron-withdrawing aryl group ligands with Cp*TiCl3. Electronic alteration was confirmed by means of cyclic voltammogram (CV), revealing a close correlation between reduction potentials and electron-donating and withdrawing substituents. A successful tuning in the catalytic activity of polymerization of ethylene was achieved: the catalytic activity was found to correlate with the Hammett constant of the respective substituents, providing a powerful strategy for prediction of the catalytic activity of new polyolefin catalyst. |
| 저자 |
김범준, 한중규, 김태진, 김성관, 고재중, 강상욱
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| 소속 |
고려대 |
| 키워드 |
polyolefin catalyst; homogeneous catalyst; single-site cataylst
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| E-Mail |
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