Abstract
Photochemical reactions of 4-[(10-sulfanyldecyl)oxy]benzophenone with deuterated polystyrene (PS-d8) were studied using Fourier-transform infrared (FT-IR) spectroscopy and vibrational sum frequency generation (VSFG) spectroscopy. The FT-IR spectral changes of PS thin films indicated that exposure to ultraviolet (UV) light caused photochemical consumption of the benzophenone moiety by a hydrogen abstraction reaction of the carbonyl group; the reaction was almost complete at an exposure energy of 2.0 J cm-2 at 254 nm. The VSFG spectral changes of the adsorbed monolayer on Au on UV exposure revealed that the carbonyl groups oriented parallel to the Au substrate surface were consumed at more exposure energies. The exposure-energy-dependent formation of PS-grafted layers was confirmed by atomic force microscopy observations of Au surfaces modified with a photoreactive monolayer.
| Original language | English |
|---|---|
| Pages (from-to) | 1035-1040 |
| Number of pages | 6 |
| Journal | Bulletin of the Chemical Society of Japan |
| Volume | 86 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sep 30 2013 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
Cite this
Photochemical grafting reactions of a benzophenone-containing alkanethiol monolayer on au with deuterated polystyrene. / Oda, Hirokazu; Onda, Ken; Nakagawa, Masaru.
In: Bulletin of the Chemical Society of Japan, Vol. 86, No. 9, 30.09.2013, p. 1035-1040.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Photochemical grafting reactions of a benzophenone-containing alkanethiol monolayer on au with deuterated polystyrene
AU - Oda, Hirokazu
AU - Onda, Ken
AU - Nakagawa, Masaru
PY - 2013/9/30
Y1 - 2013/9/30
N2 - Photochemical reactions of 4-[(10-sulfanyldecyl)oxy]benzophenone with deuterated polystyrene (PS-d8) were studied using Fourier-transform infrared (FT-IR) spectroscopy and vibrational sum frequency generation (VSFG) spectroscopy. The FT-IR spectral changes of PS thin films indicated that exposure to ultraviolet (UV) light caused photochemical consumption of the benzophenone moiety by a hydrogen abstraction reaction of the carbonyl group; the reaction was almost complete at an exposure energy of 2.0 J cm-2 at 254 nm. The VSFG spectral changes of the adsorbed monolayer on Au on UV exposure revealed that the carbonyl groups oriented parallel to the Au substrate surface were consumed at more exposure energies. The exposure-energy-dependent formation of PS-grafted layers was confirmed by atomic force microscopy observations of Au surfaces modified with a photoreactive monolayer.
AB - Photochemical reactions of 4-[(10-sulfanyldecyl)oxy]benzophenone with deuterated polystyrene (PS-d8) were studied using Fourier-transform infrared (FT-IR) spectroscopy and vibrational sum frequency generation (VSFG) spectroscopy. The FT-IR spectral changes of PS thin films indicated that exposure to ultraviolet (UV) light caused photochemical consumption of the benzophenone moiety by a hydrogen abstraction reaction of the carbonyl group; the reaction was almost complete at an exposure energy of 2.0 J cm-2 at 254 nm. The VSFG spectral changes of the adsorbed monolayer on Au on UV exposure revealed that the carbonyl groups oriented parallel to the Au substrate surface were consumed at more exposure energies. The exposure-energy-dependent formation of PS-grafted layers was confirmed by atomic force microscopy observations of Au surfaces modified with a photoreactive monolayer.
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U2 - 10.1246/bcsj.20130137
DO - 10.1246/bcsj.20130137
M3 - Article
VL - 86
SP - 1035
EP - 1040
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
SN - 0009-2673
IS - 9
ER -