| 학회 | 한국공업화학회 |
| 학술대회 | 2013년 봄 (05/01 ~ 05/03, ICC JEJU) |
| 권호 | 17권 1호 |
| 발표분야 | 고분자 중합공정 및 응용 |
| 제목 | Selective Oligomerization of Ethylene with Diphosphinoamine Chromium Catalysts |
| 초록 | Cr-catalyzed selective oligomerization of ethylene was carried out with diphosphinoamine ligands bearing pendent amine donors. Catalytic behavior of the Cr catalysts changed considerably, depending on the structural variation of ligands. The direct amine substitution on the nitrogen atom of backbone induced a conventional ethylene oligomerization with Schultz-Flory distribution. However, ethylene tetramerization was observed with other ligands having an ethylene or propylene linker between the two amines. Interestingly, the Cr catalysts having an ethylene linker and diisopropyl amine or having a propylene linker and diethyl amine groups showed a concurrent improvement of the selectivity for 1-hexene and 1-octene as well as the enhanced catalytic activity when the temperature increased from 30 oC to 60 oC. |
| 저자 | 김상율, 사석필 |
| 소속 | KAIST |
| 키워드 | oligomerization; chromium catalysts; selectivity |
