| 聚(1,3-二氧环庚烷)二醇类聚氨酯的相态结构——软段链结构对聚氨酯相态结构的影响 |
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| 引用本文： | 刘业,杨波,周显志,潘才元.聚(1,3-二氧环庚烷)二醇类聚氨酯的相态结构——软段链结构对聚氨酯相态结构的影响[J].高等学校化学学报,1999(3). |
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| 作者姓名： | 刘业 杨波 周显志 潘才元 |
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| 作者单位： | 中国科学技术大学高分子科学与工程系 |
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| 摘 要： | 用ＦＴＩＲ和ＤＳＣ对聚（１，３－二氧环庚烷）二醇为软段的聚氨酯的相态结构进行了分析．结果表明：与聚四氢呋喃二元醇类聚氨酯相比，主链中引入甲氧基后，软段相的结晶能力和硬段相中有序区的均匀程度下降．探讨了软段链结构对聚氨酯相态结构的影响
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| 关 键 词： | 聚（1.3－二氧环庚烷）二醇，聚氨酯，相态结构 |
Studies on Phase Structure of Polyurethanes Prepared\= from Poly(1,3\|dioxepane) Diols \= \_\_Effect of Chemical Structure of Soft Segment on Phase\= Structure of Polyurethanes |
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| LIU Ye,YANG Bo,ZHOU Xian\|Zhi,PAN Cai\|Yuan\.Studies on Phase Structure of Polyurethanes Prepared\= from Poly(1,3\|dioxepane) Diols \= \_\_Effect of Chemical Structure of Soft Segment on Phase\= Structure of Polyurethanes[J].Chemical Research In Chinese Universities,1999(3). |
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| Authors: | LIU Ye YANG Bo ZHOU Xian\|Zhi PAN Cai\|Yuan\ |
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| Institution: | LIU Ye,YANG Bo,ZHOU Xian\|Zhi,PAN Cai\|Yuan\+* |
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| Abstract: | Polyurethanes were prepared using poly(1,3\|dioxepane)diols(polyDOP) and \{poly(tetrahydrofuran)diols(polyTHF)\} as soft segment. The phase structures of these polyurethanes were analyzed by means of FTIR and DSC methods. The introduction of oxymethyl groups into the main chain of poly(THF) resulted in lower crystallization abilities of soft segment phase and heterogeneity of order region in hard segment phase. The effects of the chemical structure of soft segment on the crystallization of soft segment phase and \{order\} region in hard segment phase were discussed. |
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| Keywords: | Poly(1 3\|dioxepane) diols Polyurethanes Phase structure |
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