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j.radphyschem.2011.10.005.pdf | 260.82 kB | Adobe PDF | 見る/開く |
タイトル: | Synthesis of pH-responsive polysilane with polyelectrolyte side chains through γ-ray-induced graft polymerization |
著者: | Tanaka, Hidenori Kawade, Yasushi Sato, Nobuhiro https://orcid.org/0000-0002-6960-6567 (unconfirmed) Matsuyama, Tomochika |
著者名の別形: | 佐藤, 信浩 |
キーワード: | Polysilanes Graft copolymers γ-rays Radiation modification pH-responsive polymer |
発行日: | Feb-2012 |
出版者: | Elsevier Ltd. |
誌名: | Radiation Physics and Chemistry |
巻: | 81 |
号: | 2 |
開始ページ: | 185 |
終了ページ: | 189 |
抄録: | Polysilanes with polyelectrolyte side chains are synthesized by two methods utilizing γ-ray-induced grafting and the pH responsiveness for one of those polymers is revealed mainly by investigating interfacial behavior of its monolayer at the air/water interface. In the first synthetic method, poly(methyl acrylate) is grafted onto poly(methyl-n-propylsilane) (PMPrS) through γ-ray-induced grafting, and then the PMA chains are hydrolyzed to poly(acrylic acid) resulting in the yield of ca. 97%. Thus PMPrS with polyelectrolyte side chains is successfully synthesized by the graft chain hydrolysis. The other method is the direct grafting of electrolyte monomers. Poly(methacrylic acid)-grafted PMPrS (PMPrS-g-PMAA) can be obtained through γ-ray-induced grafting of methacrylic acid monomers onto PMPrS chains, which shows the effectiveness of radiation grafting for the synthesis of polyelectrolyte graft copolymers. PMPrS-g-PMAA exhibits pH responsive behavior. In addition to the pH-dependence of water solubility, interfacial behavior also depends on the pH. Langmuir monolayers of PMPrS-g-PMAA exhibit different surface pressure–area isotherms according to the grafting yield and the pH of the subphase water. This result suggests that radiation modification is useful for fabricating polysilane-based ordered materials responsive to outer stimuli. |
著作権等: | © 2011 Elsevier Ltd. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/151712 |
DOI(出版社版): | 10.1016/j.radphyschem.2011.10.005 |
出現コレクション: | 学術雑誌掲載論文等 |
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