| 具有双重相互作用PPO-PDMS-PHS_n/PPO共混相容性的研究 |
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| 引用本文： | 史林启,郑国栋,冯之榴. 具有双重相互作用PPO-PDMS-PHS_n/PPO共混相容性的研究[J]. 高分子材料科学与工程, 1998, 0(4) |
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| 作者姓名： | 史林启 郑国栋 冯之榴 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 利用ＤＳＣ和ＤＭＡ研究了一种新的含有机硅三元多嵌段共聚物ＰＰＯ－ＰＤＭＳ－ＰＨＳ与均聚物ＰＰＯ共混体系的相容性，结果表明，均聚物ＰＰＯ与ＰＰＯ－ＰＤＭＳ－ＰＨＳ中的两种嵌段（ＰＰＯ和ＰＨＳ）有相容性，两种嵌段协同作用的结果提高了共混相容性的临界值，当均聚物ＰＰＯ的Ｍｎ为２００００时，ＰＰＯ嵌段的Ｍｎ为２００００，ＰＨＳ嵌段的Ｍｎ为５１６０时，ＰＰＯ－ＰＤＭＳ－ＰＨＳ／ＰＰＯ共混物为一相容体系。
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| 关 键 词： | 多嵌段共聚物，均聚物，共混相容性 |
STUDY ON THE COMPATIBILITY OF PO PDMS PHS ?PPO BLENDS |
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| Shi Linqi,Zheng Guodong,Feng Zhiliu. STUDY ON THE COMPATIBILITY OF PO PDMS PHS ?PPO BLENDS[J]. Polymer Materials Science & Engineering, 1998, 0(4) |
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| Authors: | Shi Linqi Zheng Guodong Feng Zhiliu |
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| Abstract: | The compatibility of PO PDMS PHS ?segmented ternary copolymer with homopolymer PPO blends was studied by DSC and DMA. The results show that the homopolymer PPO will form miscible blends with PO PDMS PHS ?even when n of PPO homopolymer is high as that of PPO segment( n=20000) and much higher than that of PHS( n=5160). In this case the ratio of the n of the homopolymer to that of the corresponding segment goes over the limit of that reported in literature for homopolymer/block copolymer blends. However the mechanism of this phenomenon needs further investigation. |
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| Keywords: | segmented copolymer homopolymer compatibility of blends |
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