| 聚醚氨酯的SAXS研究 |
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| 引用本文： | 边栋材,穆祥祺,黄东耘,王盈康. 聚醚氨酯的SAXS研究[J]. 天津工业大学学报, 1996, 0(3) |
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| 作者姓名： | 边栋材 穆祥祺 黄东耘 王盈康 |
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| 作者单位： | 天津纺织工学院材料科学系，北京大学化学系 |
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| 摘 要： | 用Ｘ射线小角散射法（ＳＡＸＳ）研究ＰＴＭＧ／ＭＤＩ／ＢＤＯ体系聚醚氨酯的相分离现象．通过相分离程度ＤＰＳ、Ｐｏｒｏｄ非均匀长度ＬＰ、软硬段的平均尺寸Ｌｓ、ＬＨ、相关函数Ｙ（ｒ）长周期Ｌ等微区结构参数，表明体系随硬段重量含量的增加，ＤＰＳ降低，ＬＨ增大，Ｌｓ减少；说明在生成更大的硬段区同时溶进了更多的软段．
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| 关 键 词： | 聚醚氨酯，SAXS，微相分离 |
Evaluation of small-angle X-ray scattering of polyether-urethane |
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| Bian Dongcai, Mu Xiangqi, Huang Dongyun, Wang Yingkang. Evaluation of small-angle X-ray scattering of polyether-urethane[J]. Journal of Tianjin Polytechnic University, 1996, 0(3) |
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| Authors: | Bian Dongcai Mu Xiangqi Huang Dongyun Wang Yingkang |
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| Affiliation: | Bian Dongcai; Mu Xiangqi; Huang Dongyun; Wang Yingkang (Dept. of Mater. Sci.)(Dept. Chem.of Beijing University) |
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| Abstract: | The microphase separation of polyether-urethane composed of PTMG/ MDI/BDO as investigated by using small-angle X-ray scattering. The changes of structural parameters such as degree of phase separation(DPS), porod's non-uniform length(Lp),average length of soft-and hard-segments Ls,LH,correlation function Y(r), and long period L indicate that DPS and Ls decrease,but LH increases with increasing hard-segment component. These suggest that the larger hard domain content,the more soft-segment it contains. |
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| Keywords: | polyether-urethane SAXS microphase separation |
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