| 嵌段聚酯型聚脲氨酯硬段微区中氢键化的红外光谱研究 |
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| 引用本文： | 郭晓战,王著,张国宝,赵根锁,赵文献.嵌段聚酯型聚脲氨酯硬段微区中氢键化的红外光谱研究[J].光谱学与光谱分析,2001,21(2):169-172. |
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| 作者姓名： | 郭晓战 王著 张国宝 赵根锁 赵文献 |
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| 作者单位： | 1. 河南省科学院化学研究所
2. 商丘师专化学系 |
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| 摘 要： | 用红外光谱法对基于4，4′二苯基甲烷二异氰酸酯（MDI）、乙二胺（ED）和聚己二酸丁二醇酯（PBA）（分子量分别为1975和1228）的两系列嵌段聚酯型聚脲氨酯（PUU）硬段微区的氢键化进行了研究。发出脲C＝0基随着硬段含量增国出现双峰吸收，提出了PUU不同长度硬段序列中脲C＝0基的两种平面氢键化的模型。认为这些平面氢键可以通过进一步键合来形成硬段微区中的三维氢键。
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| 关 键 词： | 嵌段聚酯型聚脲聚酯 硬段微区 平面氢键 三维氢键 红外光谱 氢键化 成因 形成方式 |
| 修稿时间： | 2000年1月4日 |
IR Studies on Hydrogen Bonding in Hard Segment Domains of Segmented Polyester Polyurethaneurea |
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| Xiaozhan GUO,Zhu WANG,Guobao ZHANG and Gensuo ZHAO Institute of Chemistry,Henan Academy of Sciences, Zhengzhou Wenxian ZHAO.IR Studies on Hydrogen Bonding in Hard Segment Domains of Segmented Polyester Polyurethaneurea[J].Spectroscopy and Spectral Analysis,2001,21(2):169-172. |
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| Authors: | Xiaozhan GUO Zhu WANG Guobao ZHANG and Gensuo ZHAO Institute of Chemistry Henan Academy of Sciences Zhengzhou Wenxian ZHAO |
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| Institution: | Institute of Chemistry, Henan Academy of Sciences, 450002 Zhengzhou. |
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| Abstract: | Hydrogen bonding in hard segment domains of segmented polyester polyurethaneurea (PUU) based on 4,4'-diphenylmethane diisocyanate (MDI), ethylene diamine (ED) and polybutylene adipate (PBA) (M.W.1,975 and M.W.1,228) was studied by means of IR spectroscopy. It was found that the double peak absorption of urea C=O groups occurred in the studied PUU with the increase of hard segment content. Two hydrogen bonding models of urea C=O groups in different hard segment sequence lengths of PUU were proposed. Three dimensional hydrogen bonding in hard segment domains can be formed by further bonding of the above planar hydrogen bondings. |
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| Keywords: | Polyester polyurethaneurea Hard segment domain Planar hydrogen bonding Three dimensional hydrogen bonding |
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