| 端基官能化PEG与PMMA共混薄膜表面接触角的研究 |
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| 引用本文： | 潘晶,李尧,李岩,谢续明.端基官能化PEG与PMMA共混薄膜表面接触角的研究[J].塑料,2006,35(5):61-64. |
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| 作者姓名： | 潘晶 李尧 李岩 谢续明 |
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| 作者单位： | 清华大学化工系高分子研究所,先进材料教育部重点实验室,北京,100084 |
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| 摘 要： | 使用硅酸酯和聚乙二醇单甲醚(mPEG)反应制得端基官能化的PEG大分子,然后将此分子与聚甲基丙烯酸甲酯(PMMA)在氯仿溶液中共混,在玻璃基板上旋转涂膜后对涂膜的表面接触角进行了研究。实验发现,官能化的mPEG在低添加量时就可有效降低体系的接触角。对不同分子量的PEG测试结果表明,在同等添加质量比情况下,低分子量的官能化mPEG表现出更好的表面改性效果,这主要是由于低分子量的PEG有较高的硅烷氧基摩尔比例和较强的运动能力所致。研究结果表明,表面接触角的降低是由于PEG分子的硅氧烷端基在PMMA表面富集造成的。
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| 关 键 词： | 接触角 共混 表面改性 |
| 文章编号： | 1001-9456(2006)05-0061-04 |
| 修稿时间： | 2006年5月16日 |
Effect of Functionalized End-Group of mPEG on Surface Property of PMMA/mPEG Blend Film |
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| PAN Jing,LI Yao,LI Yan,XIE Xu-ming.Effect of Functionalized End-Group of mPEG on Surface Property of PMMA/mPEG Blend Film[J].Plastics,2006,35(5):61-64. |
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| Authors: | PAN Jing LI Yao LI Yan XIE Xu-ming |
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| Abstract: | Silicate ester and polyethylene glycol methyl ether(mPEG) were used to synthesis an end-group functionalized mPEG.Then this functionalized mPEG was blended with polymethyl methacrylate((PMMA)) in chloroform(CHCl_3).The blend films were prepared by spin-coating the solution on glass substrate.From contact angle measurement of the blend film surface,it was found that the low addition of the(functionalized) mPEG could effectively decrease PMMA film's water droplet contact angle.It was also found that the lower the molecular weight functionalized mPEG,the lower the contact angle of the blend film surface was at the same weight composition ratio of the blend.It implied the silicate ester end group of mPEG was(accumulated) on the PMMA/mPEG blend film surface. |
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| Keywords: | PMMA PEG |
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