ヤマシタ　タカシ   Yamashita Takashi   山下　俊    所属   工学部 応用化学科    職種   教授
言語種別	英語
発行・発表の年月	2019/06
形態種別	学術論文
査読	査読あり
標題	Preparation of Polyimide with Pendant Glycidyl Groups for Cationic Electrodeposition Coatings and Evaluation of Their Properties
執筆形態	共著
掲載誌名	J. Photopolym. Sci. Technol.
掲載区分	国外
出版社・発行元	SPST
巻・号・頁	32,pp.811-816
総ページ数	6
担当範囲	全
担当区分	最終著者,責任著者
著者・共著者	Ayumi Kobayashi, Kohei Iritani, Seiji Bando, Takashi Yamashita
概要	Owing to the paradigm shift in energy systems from petroleum to electricity to realize sustainable society, the development of high-performance electrical devices has become increasingly important. The development of insulating materials with thermal stability and facile electrodeposition is essential for the production of high-performance next-generation electric devices because such electric devices cannot be coated with a conventional dip coating method. There are few reports on the development of polyimides with electrodeposition ability. Thus, we have reported that anionic electrodeposition coating was successfully performed using poly(amide acid) (PAA) nanoparticles that can be converted to polyimides (PI) upon thermal annealing. A hybrid coating using polyimide/bentonite with an inorganic filler was also produced, and the resulting electrodeposition films were thermostable at temperatures higher than 450 ℃. However, PAAs are usually subjected to hydrolysis, and so their pot life is not long. In this study, we developed cationic electrodeposition materials with solvent-soluble PIs with pendant epoxy groups. The developed materials served as good insulation coatings on substrates and exhibited excellent thermostability.