| 含螺环原碳酸酯齐聚物的合成表征及与环氧树脂的固化反应 |
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| 引用本文： | 白如科 王长松. 含螺环原碳酸酯齐聚物的合成表征及与环氧树脂的固化反应[J]. 功能高分子学报, 1995, 8(3): 321-327 |
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| 作者姓名： | 白如科 王长松 |
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| 作者单位： | 中国科学技术大学材料科学与工程系 |
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| 摘 要： | 合成了一种新的带羟基的螺环原碳酸酯，根据它与ＭＤＩ或ＨＤＩ的不同配比，制备了分子量不同的预聚物，其结构得到了核磁和红外数据的证实。用示差扫描量热仪和红外跟踪环氧树脂及其与预聚物混合后的固化反应过程。
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| 关 键 词： | 齐聚物 固化反应 螺环原碳酸酯 环氧树脂 |
Synthesis of Prepolymers Containing Spiro Ortkocarbonate and Their Curing Reactions with Epoxy Resin |
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| Bat Rube, Wang Changsong, Qi Longwu, Zou Yingfang, Pan Caiyuan. Synthesis of Prepolymers Containing Spiro Ortkocarbonate and Their Curing Reactions with Epoxy Resin[J]. Journal of Functional Polymers, 1995, 8(3): 321-327 |
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| Authors: | Bat Rube Wang Changsong Qi Longwu Zou Yingfang Pan Caiyuan |
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| Abstract: | his paper described the Synthesis of a new spiro orthocarbonate 3,9-dihydroxymetthylene-3', 9'-diethyl--1,5,7,11-tetraoxaspiro[5,5] undecane. Upon the mole ratio of spiro ortho carbonate to MDI (HDI), the prepolymers with various molecular weights were prepared. Their structures were confirmed by proton NMR and IR data. The curing reactions of epoxy resin with or without prepolymers were followed by differential scanning calometer and IR spectroscopy. It Was found that DSC curvers showed two peaks in the case of BF33-OPDA as curing agent, and only one peak for curing agent BF3-H2NEt.The effects of prepolymers structures and curing conditions on curing reaction were observed. However,the effect of molecular weitht of prepolymer was not found obviously. It is indicated that conversion of epoxy group increased as the content of spiro orthocarbonate in epoxy resin system increased by IR spectroscopy. The mechanism of curing reaction was also discussed. |
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| Keywords: | dihydroxymetthylene-3' 9'-dietlyl-tetraoxaspiro [5 5] Prepolymer Curing reaction Epoxy resin |
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