Application of Dopant-Induced Laser Ablation to Site-Selective Modification of Sea-Island Structures of Polystyrene-block-poly(4-vinylpyridine) Films
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概要
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Dopant-induced laser ablation was applied to thin polystyrene-block-poly(4-vinylpyridine) (PS-$b$-P4VP) diblock copolymer films doped selectively with tetrakis(4-carboxyphenyl)porphine (TCPP) into the nanoscale spherical domain of P4VP-island parts. Under dry-film conditions, the ablation of the island parts was not induced. On the other hand, in methanol solvent, only the P4VP-island parts doped with TCPP were ablated selectively. The dopant-induced laser ablation is attributed to the fact that the P4VP-island parts are in the swollen state, where P4VP chains cross-linked by TCPP-dopant molecules exist with a high density in methanol. This is the first report concerning the site-selective laser ablation of diblock copolymer films.
- Japan Society of Applied Physicsの論文
- 2005-03-10
著者
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Itaya Akira
Department Of Macromolecular Science And Engineering Kyoto Institute Of Technology
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Machida Shinjiro
Department Of Chemistry And Biotechnology Graduate School Of Engineering The University Of Tokyo
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Masuo Sadahiro
Department Of Macromolecular Science And Engineering Kyoto Institute Of Technology
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Wang Zhixiang
Department of Macromolecular Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Machida Shinjiro
Department of Polymer Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Itaya Akira
Department of Chemical Engineering, Faculty of Engineering, Yamaguchi University
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