Structure control of accumulated inorganic nanoparticles by immobilization of polymer brushes

2020 Fiscal Year Final Research Report

• Project/Area Number: 18K04706
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 26020:Inorganic materials and properties-related
• Research Institution: Kyushu University
• Principal Investigator: Nishibori Maiko 九州大学, 総合理工学研究院, 准教授 (20462848)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Keywords: ポリマーブラシ修飾 / セラミックス / ナノ粒子 / コンポジット

Outline of Final Research Achievements

Polymer brush modification, in which polymer chains are densely immobilized on the surface of a substrate, is useful as a composite technology for materials because it improves the affinity of inorganic substrates with organic solvents and other polymers. In this study, we attempted to modify polymethyl methacrylate (PMMA) brushes on the surface of Ba-Ti metal oxides and investigated the factors controlling the composite film with PVDF and the brush morphology. As a result, it was found that the PMMA modification on the particle surface was effective for the composite film formation with PVDF, and the brush morphology contributed to the particle dispersion in the composite film. Furthermore, it was suggested that the interfacial interaction between the substrate surface and the polymerization initiator was related to the control of the brush morphology.

Free Research Field

無機材料科学

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた知見は、セラミックスとポリマーといった異種界面の親和性や接着性の向上につながるものである。得られた知見を基に、目的に合わせて粒子表面でのブラシ構造を設計することで、粒子充填率が高い緻密かつ機能性セラミックスと機能性ポリマー複合材料の創成につながる。