Study on UV surface modification of poly(butylene terephthalate) by near edge X-ray absorption fine structure spectroscopy and infrared reflection absorption spectroscopy

Toshihiro Okajima, Kazuhiro Hara, Masato Yamamoto, Kazuhiko Seki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The surface modification of poly(butylene terephthalate) by ultraviolet (UV) light irradiation was investigated using near edge X-ray absorption fine structure (NEXAFS) spectroscopy and infrared reflection absorption spectroscopy (IRRAS). The carbon K-edge and oxygen K-edge NEXAFS spectra were drastically changed by UV irradiation. The obtained NEXAFS spectra after UV irradiation were compared with those of some molecules containing carbonyl, carboxylic, ester, and anhydride groups. The spectral features obtained by a UV irradiated PBT surface were analogous to those of pyromellitic dianhydride containing an anhydride group. The IRRAS spectra of PBT surfaces were also changed by UV irradiation. The changes showed the disappearance of an alkyl chain and structural changing of ester bonds by UV irradiation. These results indicated that the alkyl chains and ester bonds in PBT are removed by UV irradiation, and that anhydride groups were formed on a UV irradiated PBT surface.

Original languageEnglish
Pages (from-to)477-488
Number of pages12
Journalbunseki kagaku
Volume59
Issue number6
DOIs
Publication statusPublished - Jul 19 2010

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X ray absorption near edge structure spectroscopy
Absorption spectroscopy
Surface treatment
Irradiation
Infrared radiation
Anhydrides
Esters
X ray absorption
butylene
terephthalic acid
Carbon
Oxygen
Molecules

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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Study on UV surface modification of poly(butylene terephthalate) by near edge X-ray absorption fine structure spectroscopy and infrared reflection absorption spectroscopy. / Okajima, Toshihiro; Hara, Kazuhiro; Yamamoto, Masato; Seki, Kazuhiko.

In: bunseki kagaku, Vol. 59, No. 6, 19.07.2010, p. 477-488.

Research output: Contribution to journalArticle

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