| 无规共聚物与均聚物共混体系的相容性 |
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| 引用本文： | 易菊珍,冯汉桥.无规共聚物与均聚物共混体系的相容性[J].波谱学杂志,1998,15(5):403-410. |
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| 作者姓名： | 易菊珍 冯汉桥 |
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| 作者单位： | 中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室, 武汉 430071 |
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| 摘 要： | 用核磁共振方法(NMR)及差示扫描量热法(DSC)测定了苯乙烯-丙烯腈(SAN)无规共聚物与均聚物系列聚甲基丙烯酸甲酯(PMMA),聚甲基丙烯酸乙酯(PEMA),聚甲基丙烯酸正丁酯(PnBMA),聚甲基丙烯酸异丁酯(PiBMA)共混体系的有关参数,比较全面地研究了影响SAN与聚甲基丙烯酸酯类(PMAs)相容性的因素,对它们相容性的本质进行了探讨,得出了一些重要结论.
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| 关 键 词： | 相容性 序列分布 DSC NMR 均聚物 无规共聚物 核磁共振弛豫 |
| 收稿时间： | 1998-05-12 |
THE MISCIBILITY OF HOMOPOLYMER/RANDOM COPOLYMER BLENDS |
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| Yi Juzhen and Feng Hanqiao.THE MISCIBILITY OF HOMOPOLYMER/RANDOM COPOLYMER BLENDS[J].Chinese Journal of Magnetic Resonance,1998,15(5):403-410. |
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| Authors: | Yi Juzhen and Feng Hanqiao |
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| Institution: | State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physcics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071 |
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| Abstract: | The misibility of blends of poly (styerene co acrylonitrile) (SAN) with poly (methyl methacrylate) (PMMA), poly (ethyl methacrylate) (PEMA), poly (n butyl methacrylate) (PnBMA), poly (i butyl methacrylate) (PiBMA) has been studied by means of NMR and DSC techniques. The results indicate that there are strong intermolecular interactions between the phenyl groups in SAN and and carbonyl groups in PMAs, the sequence distribution of SAN and dimensional conformations of PMA play critical roles in the miscibility of blends. |
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| Keywords: | Sequence distribution Miscibility DSC NMR Homopolymer Random copolymer NMR Relaxation |
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