| 混合溶剂诱导PS膜的去润湿过程 |
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| 引用本文： | 童淑元,徐林,石彤非,安立佳. 混合溶剂诱导PS膜的去润湿过程[J]. 高等学校化学学报, 2011, 32(4): 995-1000 |
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| 作者姓名： | 童淑元 徐林 石彤非 安立佳 |
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| 作者单位： | 中国科学院长春应用化学研究所,高分子物理与化学国家重点实验室,长春,130022 |
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| 摘 要： | 采用光学显微镜及原子力显微镜等实验手段研究了聚苯乙烯(PS)膜在水和丙酮混合溶剂诱导下的去润湿过程.实验发现,在亲水基底上,随着丙酮含量的减少,在整个去润湿过程中孔半径与时间呈e指数关系[R～exp(t/τ)],然后呈线性关系(R～t),最后为R～t0.76,并且孔增长机理从成核增长机理转变为取代机理.在疏水基底上,随...
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| 关 键 词： | 聚苯乙烯薄膜 去润湿动力学 混合溶剂诱导 |
| 收稿时间： | 2010-04-15 |
Mixed Solvent Induced Dewetting of Polystyrene Thin Film |
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| TONG Shu-Yuan,XU Lin,SHI Tong-Fei,AN Li-Jia. Mixed Solvent Induced Dewetting of Polystyrene Thin Film[J]. Chemical Research In Chinese Universities, 2011, 32(4): 995-1000 |
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| Authors: | TONG Shu-Yuan XU Lin SHI Tong-Fei AN Li-Jia |
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| Affiliation: | State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
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| Abstract: | An experimental method for reproducible results has been used to investigate dewetting behavior of thin film of mixed-solvent-laden polymer. The variation of the mixed solvent (acetone and water) in the composition enables the films to exhibit different dewetting behavior, such as the process of holes growth, from the unstable growth process to the stable growth process, the mechanism of holes growth, from the nucleation growth to the replacement of solvent, and the dewetting dynamics. |
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| Keywords: | Thin polymer film Mixed solvent Solvent-induced dewetting |
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