TY - JOUR
T1 - NEXAFS Spectroscopic Study of Surface Modification on Poly(butylene terephthalate) Induced by UV Irradiation
AU - Okajima, Toshihiro
AU - Hara, Kasuhiro
AU - Yamamoto, Masato
AU - Seki, Kazuhiko
N1 - Funding Information:
We are grateful to Mr. Kazuyoshi Teramoto of Mitsubishi Electric Corporation for useful discussions. This work was performed under the approval of Photon Factory Advisory Committee (proposals 95G372 and 95G374). This work was supported in part by Grants-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan (07NP0301 and 07CE2004) and also by the Venture Business Laboratory Project ‘‘Advanced Nanoprocess Technology’’ of Nagoya University.
PY - 2012/4
Y1 - 2012/4
N2 - Surface modification of poly(butylene terephthalate) (PBT) induced by ultraviolet (UV) irradiation was investigated using near-edge X-ray absorption fine structure spectroscopy (NEXAFS). UV irradiation drastically altered carbon and oxygen K-edge NEXAFS spectra of PBT. NEXAFS spectra obtained after UV irradiation were compared with those of various molecules containing carbonyl, carboxylic, ester, and anhydride groups. UV-irradiated PBT surfaces had spectral features similar to those of pyromellitic dianhydride, which contains anhydride groups. These results indicate that UV irradiation removes alkyl chains and ester bonds in PBT and forms anhydride groups on PBT surfaces. It was also suggested that anhydrides might be formed near PBT surfaces by UV irradiation.
AB - Surface modification of poly(butylene terephthalate) (PBT) induced by ultraviolet (UV) irradiation was investigated using near-edge X-ray absorption fine structure spectroscopy (NEXAFS). UV irradiation drastically altered carbon and oxygen K-edge NEXAFS spectra of PBT. NEXAFS spectra obtained after UV irradiation were compared with those of various molecules containing carbonyl, carboxylic, ester, and anhydride groups. UV-irradiated PBT surfaces had spectral features similar to those of pyromellitic dianhydride, which contains anhydride groups. These results indicate that UV irradiation removes alkyl chains and ester bonds in PBT and forms anhydride groups on PBT surfaces. It was also suggested that anhydrides might be formed near PBT surfaces by UV irradiation.
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U2 - 10.1080/1023666X.2012.654391
DO - 10.1080/1023666X.2012.654391
M3 - Article
AN - SCOPUS:84859721678
SN - 1023-666X
VL - 17
SP - 218
EP - 226
JO - International Journal of Polymer Analysis and Characterization
JF - International Journal of Polymer Analysis and Characterization
IS - 3
ER -