| 聚酯型脂肪族聚氨酯的合成及其表征 |
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| 引用本文： | 任志勇,杨惠昌.聚酯型脂肪族聚氨酯的合成及其表征[J].河南科学,1987(2). |
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| 作者姓名： | 任志勇 杨惠昌 |
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| 作者单位： | 河南化学研究所，河南化学研究所 |
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| 摘 要： | 本工作分别利用本体一步和本体预聚法探索合成出一种新的组成变化范围较大的聚酯型脂肪族多嵌段聚氨酯(Aliphatic Segmented Polyurethane,简称ASPU)。利用元素分析、IR、~1HNMR,WAXD、DMA、SEM等对样品进行了较为全面的表征,发现ASPU与芳香族聚氨酯最大的不同是其抗溶剂性强,硬段结晶度高,并且硬段的晶胞参数与纯硬段相同。也不随硬段含量而变化。
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| 关 键 词： | 脂肪族聚氨酯 晶胞参数 |
PREPARATION AND CHARACTERIZATIONS OF A KIND OF NEW ALIPHATIC POLYURETHANE |
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| Ren Zhiyong,Yang Huichang Henan Institute of Chemistry.PREPARATION AND CHARACTERIZATIONS OF A KIND OF NEW ALIPHATIC POLYURETHANE[J].Henan Science,1987(2). |
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| Authors: | Ren Zhiyong Yang Huichang Henan Institute of Chemistry |
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| Institution: | Ren Zhiyong;Yang Huichang Henan Institute of Chemistry |
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| Abstract: | A senes of new aliphatic polyurethanes (ASPU) have been prepared by one--step and prepolymer methods respectively. Elementaly analysis, IR, 1~HNMR, WAXD, DMA and SEM were ued to charaCterize the struCture and properties. The results show that ASPU has a much higher level of crystallinity and more powerful solvent--resistance than that of aromatic one. In addition, the lattice parameters of ASPU is the same as thot of its pure hard segment and doesn't change with its hard segment content. |
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| Keywords: | aliphatic polyurethane |
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