| ε-己内酯与环氧丙烷嵌段共聚合研究 |
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| 引用本文： | 曹维孝,江必旺,冯新德.ε-己内酯与环氧丙烷嵌段共聚合研究[J].高分子学报,1990(3). |
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| 作者姓名： | 曹维孝 江必旺 冯新德 |
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| 作者单位： | 北京大学化学系 北京
(曹维孝，江必旺)，北京大学化学系 北京(冯新德) |
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| 摘 要： | Inoue等用四苯基卟啉(TPP)与εt_2AlCl的作用产物四苯基卟啉氯化铝(TPPAICl)进行环氧乙烷、环氧丙烷(PO)、β-丙内酯的开环聚合与嵌段共聚合已有很多报道,但Inoue近期文章也有己内酯开环聚合的报道,但1986前只用于开丙内酯聚合。所以我们1986年的文章(即本文的文献2]是最早用此催化剂进行ε-己内酯聚合的。我们用此催化剂进行了CL的开环聚合。至于CL的嵌段共聚合,Endo等报道了用TPPAlCl/甲
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| 关 键 词： | ε-己内酯 活性聚合 嵌段共聚合 |
STUDIES ON THE BLOCK COPOL YMERIZATION OF CAPROLACTONE-PROPYLENE OXIDE CATALYZED BY PORPHYRIN-DIETHYLALUMINIUM CHLORIDE |
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| CAO Weixiao,JIANG Biwang and FENG Xinde.STUDIES ON THE BLOCK COPOL YMERIZATION OF CAPROLACTONE-PROPYLENE OXIDE CATALYZED BY PORPHYRIN-DIETHYLALUMINIUM CHLORIDE[J].Acta Polymerica Sinica,1990(3). |
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| Authors: | CAO Weixiao JIANG Biwang and FENG Xinde |
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| Abstract: | The polymerization of e-caprolactone (CL) or propylene oxide (PO) with tetra-phenylporphyrin (TPP)-diethylaluminium chloride (et2AlCl) as catalyst in toluene gives the polymer with narrow molecular weight distribution and is living polymerization in nature.From the living polymerization of CL or PO the block compolymers of PCL-PPO or PPO-PCL were prepared, The M, and Mw/Mn of homo-or copolymers were determined by GPC and showed that the M, increased linearly with the increase of conversion and the value of Mw/Mn was 1.19-1.25, indicating the narrow distribution of the molecular weights. The ratio of CL/PO (mole/mole) in the block copolymers were estimated by GPC or NMR spectroscopy. |
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| Keywords: | Caprolactone Living polymerization Block copolymers |
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