| 聚苯乙烯/聚二甲基硅氧烷嵌段与接枝共聚物表面聚集态的研究 |
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| 引用本文： | 吴宁晶,黄礼侃,郑安呐,胡福增,管涌.聚苯乙烯/聚二甲基硅氧烷嵌段与接枝共聚物表面聚集态的研究[J].高分子学报,2005(1):137-141. |
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| 作者姓名： | 吴宁晶 黄礼侃 郑安呐 胡福增 管涌 |
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| 作者单位： | 华东理工大学超细材料制备与应用教育部重点实验室,上海,200237 |
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| 基金项目： | 上海市科委重大项目 (项目号 0 2dz110 17) |
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| 摘 要： | 利用ATR单点全反射技术以及XPS(X光电子能谱 )测试方法对聚苯乙烯 聚二甲基硅氧烷嵌段 (PS b PDMS)和接枝共聚物 (PS g PDMS)进行了研究 ,发现聚合物膜表面存在着有机硅富集层 ,PS b PDMS有机硅表面富集程度要高于PS g PDMS ,而且不同溶解度参数的成膜溶剂和不同极性的成膜介质对有机硅富集程度有一定的影响 .
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| 关 键 词： | PS-b-PDMS PS-g-PDMS ATR-FTIR XPS 表面富集 |
| 修稿时间： | 2003年12月10 |
SURFACE STUDY OF BLOCK AND GRAFT COPOLYMERS OF POLYSTYRENE- POLYDIMETHYLSILOXANE |
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| WU Ningjing,HUANG Likan,ZHENG Anna,HU Fuzeng,GUAN Yong.SURFACE STUDY OF BLOCK AND GRAFT COPOLYMERS OF POLYSTYRENE- POLYDIMETHYLSILOXANE[J].Acta Polymerica Sinica,2005(1):137-141. |
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| Authors: | WU Ningjing HUANG Likan ZHENG Anna HU Fuzeng GUAN Yong |
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| Abstract: | The surface compositions of a series of block and graft copolymers of polystyrene-polydimethylsiloxane was investigated by attenuated total reflectance (ATR-FTIR) and X-ray photoelectron spectroscopy(XPS).It was shown that enrichment of PDMS soft segments occurred on the surface of the block copolymers as well as on that of graft copolymers. The degree of enrichment of PS-b-PDMS was larger than that of PS-g-PDMS, which was explained as a result of the easiness of movement of the PDMS segments of PS-b-PDMS. Meanwhile, the solvents of different solubility parameter and the contact medium of different polarity had different influence on the enrichment of PDMS on the surface. The surface energy measurement further confirmed that the diblock copolymers tended to have higher surface enrichment of the PDMS segments than that of the graft copolymers. |
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| Keywords: | PS-b-PDMS PS-g-PDMS ATR-FTIR XPS Surface enrichment |
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