高分子グラフトカーボンナノチューブの電気的性質

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2015/02/01

タイトル(英語): Electrical Properties of Polymer-Grafted Carbon Nanotubes

著者名: 林田　研一（（株）豊田中央研究所）

著者名(英語): Kenichi Hayashida (Toyota Central R&D Labs., Inc.)

キーワード: カーボンナノチューブ，高分子複合材料，誘電特性　　multiwalled carbon nanotube，polymer nanocomposite，dielectric property

要約(英語): Poly(cyclohexyl methacrylate)s (PCHMAs) were grafted on carbon nanotubes (CNTs) using surface-initiated polymerization technique. Electrical properties of the PCHMA-grafted CNTs (PCHMA-CNTs) were systematically measured under direct current (DC) and alternating current (AC), and compared with those of conventional nanocomposites prepared by blending PCHMA with CNT (PCHMA/CNT). At a comparable volume fraction of CNT, PCHMA-CNT is 15 orders of magnitude higher DC volume resistivity than PCHMA/CNT. This excellent electrical insulation of PCHMA-CNT is achieved by the perfect isolation of individual CNTs owing to the high molecular weight PCHMAs densely grafted on the CNTs. The highly insulated PCHMA-CNT showed the same AC frequency dependence of impedance as neat PCHMA. This means PCHMA-CNT is a dielectric. The dielectric performance of PCHMA-CNT was evaluated by comparing with that of a barium titanate-filled PCHMA composite.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.135 No.2 （2015） 特集：電気電子絶縁材料システムシンポジウム

本誌掲載ページ: 69-74 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/135/2/135_69/_article/-char/ja/