| 聚氧化乙烯-聚苯乙烯-聚氧化乙烯三嵌段共聚物/聚苯醚共混物的相容性和结晶行为 |
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| 引用本文： | 石晓虹,刘立志,方天如,姜炳政.聚氧化乙烯-聚苯乙烯-聚氧化乙烯三嵌段共聚物/聚苯醚共混物的相容性和结晶行为[J].高分子学报,1993,0(4):398-402. |
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| 作者姓名： | 石晓虹 刘立志 方天如 姜炳政 |
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| 作者单位： | 中国科学院长春应用化学研究所高分子物理开放实验室 130022 |
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| 摘 要： | 本工作对聚氧化乙烯-聚苯乙烯-聚氧化乙烯(PEO-PS-PEO)三嵌段共聚物与聚苯醚(PPO)均聚物共混物的相容性及结晶行为进行了研究。结果表明,共混体系的相容性与嵌段共聚物中苯乙烯段的含量有关,PS含量越高,PPO与共聚物PS段的相容性越好。共混体系的结晶行为也明显不同于一般均聚物共混体系。在DSC降温结晶过程中最多可出现三个结晶峰。
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| 关 键 词： | 嵌段共聚物 共混 相容性 结晶行为 |
| 收稿时间： | 1991-05-07 |
THE COMPATIBILITY AND CRYSTALLIZATION BEHAVIOR OF PEO-PS-PEO TRIBLOCK COPOLYMER/PPO HOMOPOLYMER BLENDS |
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| SHI Xiao-hong,LIU Li-zhi,FANG Tian-ru,JIANG Bing-zheng.THE COMPATIBILITY AND CRYSTALLIZATION BEHAVIOR OF PEO-PS-PEO TRIBLOCK COPOLYMER/PPO HOMOPOLYMER BLENDS[J].Acta Polymerica Sinica,1993,0(4):398-402. |
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| Authors: | SHI Xiao-hong LIU Li-zhi FANG Tian-ru JIANG Bing-zheng |
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| Institution: | Polymer Physics Laboratory; Changchun Institute of Applied Chemistry; Academia Sinica; Changchun; Post code: 130022 |
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| Abstract: | The compatibility and crystallization behavior of ethylene oxide-styrene-ethylene oxide triblock copolymer (PEO-PS-PEO)/Polyphenyleneoxide (PPO) blends have been studied. The higher the PS content in PEO-PS-PEO copolymer, the better the compatibility of its mis-ture with PPO homopolymer. From the crystallization point of view, PEO-PS-PEO copolymer in the blends crystallizes in a very different way with blend composition, and the crystallization features, such as many crystallization peaks in DSC thermograms obtained during cooling,are really different from those of homopolymer blends. |
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