ESR study of carbonization of polyimide (Kapton H) film induced by 1 MeV N2+-irradiation

✍ Scribed by Shoji Noda; Tatsumi Hioki

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 405 KB
• Volume: 22
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(84)90006-x

✦ Synopsis

ESR spectra of N, +-irradiated polyimide (Kapton) films have been investigated as a function of the irradiation dose. Two narrow single lines with slightly different g-values close to 2.003 have been detected in the highly irradiated Kapton films, and they have tentatively been assigned to giant aromatic radicals being in the areas of different ~r~nization stages. The Kr +-irratiation has given ESR spectra similar to those by the N, -+ irradiation. Some different features of the ESR spectra between the carbonaceous substances produced by ion-irradiation and those by pyrolysis have been discussed.