| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Chromium-Based Ethylene Tetramerization with Diphosphinoamines Bearing Pendant Amine Donors |
| 초록 |
A series of bis(diphenylphosphino)amine ligands with amine donors tethered to nitrogen of the ligand backbones have been synthesized and transformed to ethylene oligomerization catalysts with chromium. Ethylene oligomerization properties of the catalysts with MAO cocatalysts were investigated. It was found that catalytic properties were highly dependent on the structural and electronic nature of them. Interestingly, the most similar ligand to the conventional diphosphinoamine catalysts produced statistical distribution of α-olefins via nonselective mechanism. But many of them showed ethylene tetramerization behaviors. Increased reaction temperature from 30 oC to 60 oC leaded to the enhancement of 1-hexene and 1-octene selectivity while preserving a good activity, which was significantly different from the conventional diphosphinoamine catalysts. Thermal stability of the catalysts was further confirmed through tetramerization study at high temperature. |
| 저자 |
사석필1, 이승민1, 이용호2, 조민석2, 김상율1
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| 소속 |
1한국과학기술원, 2LG화학 |
| 키워드 |
ethylene; oligomerization; 1-hexene; 1-octene
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| E-Mail |
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