| 钯II催化CO/乙烯共聚加压原位红外光谱研究 |
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| 引用本文： | 罗河宽,李达刚.钯II催化CO/乙烯共聚加压原位红外光谱研究[J].物理化学学报,1997,13(2):158-163. |
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| 作者姓名： | 罗河宽 李达刚 |
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| 作者单位： | Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000 |
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| 摘 要： | 聚酿以其优良的物理、化学性能及原料（CO乙烯）简单易得的优点，在世界范围内已引起人们的普遍关注．为寻找价廉的催化剂或改良高效或（11）一双磷催化剂以推动聚酮的工业化进程，必须对共聚机理进行深入的研究．S；，n［’，’1、DrentP］等人根据对产品主链和端基的分析首先
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| 关 键 词： | 一氧化碳 乙烯 共聚 原位红外 |
| 收稿时间： | 1996-05-27 |
| 修稿时间： | 1996-08-16 |
High Pressure in situ IR Studies on Mechanism of Palladium(II) Catalyzed Copolymerization of CO with Ethylene |
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| Luo Hekuan, Li Dagang.High Pressure in situ IR Studies on Mechanism of Palladium(II) Catalyzed Copolymerization of CO with Ethylene[J].Acta Physico-Chimica Sinica,1997,13(2):158-163. |
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| Authors: | Luo Hekuan Li Dagang |
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| Institution: | Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000 |
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| Abstract: | The copolymerization of CO with ethylene was studied with high pressure in situ IR technique using (DPPPr)Pd(p-CH3PhSO3)2 as the catalyst precursor. Two IR absorptions of carbonyl groups were observed at 1900cm-1 and 1810cm-1 under pure CO ambience, which proved that CO was coordinated with Pd(Ⅱ) under pure CO ambience. Three IR absorptions were observed at 1638, 1616, 1970cm -1 under real reaction conditions, which could be assigned to three intermediates (1,2,3) respectively, indicating that the insertion of CO into Pd-OR bond was probabaly one of the main initation path ways in alcohol solvent. |
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| Keywords: | Carbon monoxide Ethylene Copolynlerization In situ IR |
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