| 甲基丙烯酸-苯乙烯嵌段共聚物的XPS研究 |
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| 引用本文： | 许观藩,方天如,徐素贤. 甲基丙烯酸-苯乙烯嵌段共聚物的XPS研究[J]. 高分子学报, 1990, 0(4): 406-413 |
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| 作者姓名： | 许观藩 方天如 徐素贤 |
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| 作者单位： | 中国科学院长春应用化学研究所 长春(许观藩，方天如)，中国科学院长春应用化学研究所 长春(徐素贤) |
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| 摘 要： | 对甲基丙烯酸-苯乙烯嵌段共聚物DMF溶液涂制膜(接着经过或不经其它溶剂的处理)的XPS研究表明,共聚物本体组成对膜的表面组成没有明显的影响。从DMF溶液直接涂膜时,按照两相模型,PMAA在表面的面积分数最大可达0.55。在用溶剂处理时,膜表面组成基本上决定于所用溶剂的溶解度参数,PMAA的表面面积分数按下列顺序降低:水>乙醇>环己烷>石油醚。
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| 关 键 词： | X射线光电子能谱学 甲基丙烯酸-苯乙烯嵌段共聚物 溶液涂制膜 |
| 收稿时间： | 1988-12-21 |
AN XPS STUDY ON METHACRYLIC ACID-STYRENE BLOCK COPOLYMERS |
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| XU Guan-fan,FANG Tian-ru,XU Su-xian. AN XPS STUDY ON METHACRYLIC ACID-STYRENE BLOCK COPOLYMERS[J]. Acta Polymerica Sinica, 1990, 0(4): 406-413 |
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| Authors: | XU Guan-fan FANG Tian-ru XU Su-xian |
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| Affiliation: | Changchun Institute of Applied Chemistry; Academia Sinica; Changchun |
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| Abstract: | An XPS study was performed on films of methacrylic acid-styrene block copolymers (PMAA-b-PS) which were cast from DMF solutions, without or with subsequent solvent treatment. The results showed that the bulk compositions of the block copolymers had little, if any, influence on the surface compositions of the films. Direct casting from DMF solutions resulted in the highest fractional area coverages of PMAA at the surfaces according to a two-phase model, reaching a value of 0.55. In the cases of solvent treatment, the surface compositions were basically dependent on the solubility parameters of the solvents used and the fractional area coverages of PMAA at surfaces decreased in thee order of water >ethyl alcohol > cyclohexane > petroleum ether. |
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| Keywords: | XPS Methacrylic acid-styrene block copolymers Solution cast films |
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