Molecular Arrangement of Organized Molecular Films of Linear and Cyclic Amphiphilic Block Copolymers with Different Shapes

• Meng Qi

  Graduate School of Science and Engineering, Saitama University

• Hashimoto Masamichi

  Department of Functional Materials Science, Saitama University

• Honda Satoshi

  Faculty of Engineering, Tokyo University of Science

• Tezuka Yasuyuki

  Graduate School of Science and Engineering, Tokyo Institute of Technology

• Yamamoto Takuya

  Graduate School of Science and Engineering, Tokyo Institute of Technology

• Fujimori Atsuhiro

  Department of Functional Materials Science, Saitama University

抄録

A "topological polymer chemistry" as a new concept in polymer science at the air/water interface is investigated by using amphiphilic linear and cyclic block copolymers consisting of butyl acrylate and ethylene oxide. The relatively stable monolayers of these two kinds of amphiphilic copolymers were formed at the air/water interface. In addition, these two kinds of amphiphilic copolymers constructed highly ordered Langmuir-Blodgett (LB) multilayers. In order to estimate the layered regularity under high temperature, the temperature-controlled out-of-plane X-ray diffraction (XRD) of LB films of amphiphilic linear and cyclic block copolymers was obtained. As a result, excellent heat-resistant propertyies of organized molecular films of the cyclic copolymer were confirmed. At room temperature, both copolymers showed clear diffraction peaks based on the formation of highly ordered layer structures. However, in the case of linear copolymers, layered structures were gradually disordered with heating. On the other hand, regularity of LB multilayers of the cyclic copolymers did not change with heating up to 50 °C. In this case, higher order reflections (d₀₀₂, d₀₀₃) of XRD are also unchanged, which means the formation of highly ordered regularity.

収録刊行物

• Transactions of the Materials Research Society of Japan

  Transactions of the Materials Research Society of Japan 39 (1), 79-82, 2014

  一般社団法人 日本MRS

キーワード

• Block copolymer
• Cyclic polymer
• Molecular orientation
• Topological polymer chemistry
• Langmuir-Blodgett film

詳細情報

• CRID: 1390282680488630656
• NII論文ID: 130005004298
• DOI: 10.14723/tmrsj.39.79
• ISSN: 21881650
• ISSN: 13823469
• Web Site: https://www.jstage.jst.go.jp/article/tmrsj/39/1/39_79/_pdf
• 本文言語コード: ja
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