Salen 型鎳配合物的合成及催化丙烯齊聚的研究

材料科學論文編號:CL070  論文字數:9214,頁數:25

目  錄
中文摘要 I
英文摘要 II
目錄 III
1. 緒論 1
 1.1  丙烯二聚體系................................................. 1
 1.1.1 丙烯二聚催化劑體系的研究意義 1
 1.1.2 丙烯二聚催化劑體系的種類............................... 1
 1.2.2.1 鎳系丙烯二聚催化體系.............................. 1
 1.2.2.2 非鎳系丙烯二聚催化體系............................ 2
 1.2  丙烯二聚反應的機理........................................... 2
 1.3  六碳烯烴..................................................... 3
 1.4  Salen型鎳系催化劑............................................ 4
 1.5  課題研究的意義和方向......................................... 5
2.實驗部分........................................................... 6
 2.1 原料和儀器.................................................... 6
 2.1.1 原料和試劑............................................. 6
 2.1.2 儀器和設備............................................. 6
 2.2 實驗步驟...................................................... 7
 2.2.1 Salen配體的制備.........................................7
 2.2.2 Salen催化劑的制備.......................................8
 2.2.3 丙烯齊聚反應........................................... 9
 2.3 分析與測試.................................................... 9
 2.3.1 配體配合物的紅外分析................................... 9
 2.3.2 配合物的DSC熱性能測試.................................. 9
 2.3.3 紫外分析............................................... 9
 2.3.4 齊聚物的氣相色譜分析................................... 9
3. 結果與討論....................................................... 10
 3.1 配體的分析和表征............................................ 10
 3.1.1 配體的紅外分析........................................ 10
 3.1.2 配體的紫外分析........................................ 11
 3.2 配合物的分析和表征.......................................... 11
 3.2.1 配合物的紅外分析 ..................................... 11
 3.2.2 配合物的紫外分析...................................... 12
 3.2.3 配合物的DSC熱性能分析................................. 13
 3.3 丙烯齊聚催化性能的分析...................................... 14
 3.4 三苯基膦的加入對催化活性機理影響............................ 15
4. 總結與展望....................................................... 17
致謝 19
參考文獻 20

摘 要：本文以3，5-二叔丁基水楊醛與乙二胺為原料反應合成Salen配體，然后用這種Salen配體與醋酸鎳反應生成Salen型鎳配合物。反應得到的配合物用紅外、紫外以及DSC進行表征。考察了兩種Salen型鎳配合物催化劑：3，5-二叔丁基水楊醛乙二胺鎳與水楊醛乙二胺鎳，用于催化劑丙烯齊聚活性。用氣相色譜對丙烯齊聚反應的產物進行分析。最后，加入三苯基膦，用紫外光譜研究了配合物/PPh3溶液體系，推測了催化活性中心形成的可能機理。                   

關鍵詞：丙烯齊聚；Salen型鎳配合物；3，5-二叔丁基水楊醛；乙二胺; 三苯基膦;
                      
Abstract: In this article， salen-type ligand was synthesized by 3, 5-di-tert-butyl salicylaldehyde and ethylenediamine, then salen-type nickel complexes was prepared with the ligand and nickel acetate. Then the ligand and complexs were characteristiced by IR, UV and DSC. The catalytic performance in propylene oligomerization was in propylene for two salen-typed: 3, 5-di-tert-butyl salicylaldehyde ethylenediamine nickel andfor salicylaldehyde ethylenediamine. Propylene oligomerization products were analyzed by gas chromatography .The properties of complexes/triphenylphosphine solution system were investigated by UV method, and then the possible formation mechanism of catalytic active site was deduced.
Keywords：Propylene Oligomerization; Salen-type nickel complexes；3, 5-Di-tert-butyl salicylaldehyde；Sthylenediamine；Triphenylphosphine