| 用PAT和SAXS研究羧酸型聚酯聚氨酯离聚体的微畴结构 |
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| 引用本文： | 尹传元 顾雪容. 用PAT和SAXS研究羧酸型聚酯聚氨酯离聚体的微畴结构[J]. 南京大学学报(自然科学版), 1989, 25(4): 628-632 |
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| 作者姓名： | 尹传元 顾雪容 |
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| 作者单位： | 南京大学物理系，南京大学化学系，南京大学现代分析中心 |
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| 摘 要： | 本文用羧酸型聚酯聚氨酯离聚体和它的金属盐材料作正电子湮没(PAT),小角X射线散射(SAXS)以及比重法测量材料密度的实验,实验的结果表明,随着金属离子价数的增加,反离子半径增大,微畴体积增大,材料中的自由体积减小。本文还讨论了PAT和SAXS实验应用范围,并表明PAT是研究羧酸型盐聚酯聚氨酯离聚体微畴结构的有意义的方法。
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| 关 键 词： | 羧酸型聚酯聚氨酯离聚体 正电子湮没 小角X射线散射 |
THE DOMAIN STRUCTURE OF CARBOXYLIC POLYURETHANE IONOMER IS STUDIED BY PAT AND SAXS |
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| Yin ChuanYuan Gu Xingruang Wang Huagin. THE DOMAIN STRUCTURE OF CARBOXYLIC POLYURETHANE IONOMER IS STUDIED BY PAT AND SAXS[J]. Journal of Nanjing University: Nat Sci Ed, 1989, 25(4): 628-632 |
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| Authors: | Yin ChuanYuan Gu Xingruang Wang Huagin |
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| Affiliation: | Yin ChuanYuan (Dept. of Physics) Gu Xingruang(Dept. of Chemistry) Wang Huagin(Center of Modern Analysis) |
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| Abstract: | The domain structure of carboxylic polyurethane ionomer and its metal salts ware studied by positron annihilation technique (PAT), small angle x-ray scattering (SAXS) and density measurement. The experimental results demonstrate that counterion radius, domain volume and density of carboxyic polyurethane ionomer increase and free volume decrease with the valency of the metal ion. The application ranges of PAT and SAXS are discussed, It is shown that is a significant method to study domain structure in the ionomer. |
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| Keywords: | carboxylic polyurethane ionomer positron annihilatiopn technique small angle x-ray scattering |
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