| 多嵌段聚氨酯脲硬段模型化合物的合成和结构研究 |
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| 引用本文： | 罗宁,王得宁.多嵌段聚氨酯脲硬段模型化合物的合成和结构研究[J].高等学校化学学报,1995,16(6):986-988. |
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| 作者姓名： | 罗宁 王得宁 |
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| 作者单位： | 华东理工大学材料科学研究所 |
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| 摘 要： | 多嵌段聚氨酯脲硬段模型化合物的合成和结构研究罗宁，王得宁，应圣康（华东理工大学材料科学研究所，上海，２００２３７）关键词３，５－二乙基甲苯二胺，４，４′－二苯基甲烷二异氰酸酯，氢键，微晶，热分析３，５－二乙基甲苯二胺（ＤＥＴＤＡ）是目前反应注射成型（...
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| 关 键 词： | 苯基 甲烷 二异氰酸酯 氢键 DETDA |
Synthesis and Structure Study of Hard-Segment Model Compounds in Poly(urethane urea)Block Copolymers |
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| LUO Ning,WANG De-Ning,YING Sheng-Kang.Synthesis and Structure Study of Hard-Segment Model Compounds in Poly(urethane urea)Block Copolymers[J].Chemical Research In Chinese Universities,1995,16(6):986-988. |
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| Authors: | LUO Ning WANG De-Ning YING Sheng-Kang |
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| Abstract: | A series of hard-segment model compounds based on 3,5-diethyltoluene diamine,4,4'-diphenylmethane diisocyanate and phenyl isocyanate has been synthesized in this paper.The model compounds are microcrystals.Combined with WAXD analysis,the assignment of the bands at 1643 cm(-1)and 3290 cm(-1)in the FTIR spectra of the model compounds is given.Both bands are the hydrogen-bonded urea carbonyl and urea NH groups with the form of planarly bifurcated hydrogen bonds in the microcrystals,respectively.Melting points of the model compounds are almost the same as the change of average degree of polymerization by DSC experiments. |
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| Keywords: | DiethyItoluene diamine 4 4'-Diphenylmethane diisocyanate Hydrogen bond Microcrystal Thermal analysis |
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