| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.5 |
| 발표분야 |
고분자 |
| 제목 |
Photothermal cantilever deflection spectroscopy of a photosensitive polymer |
| 초록 |
The mechanical and chemical information of a poly(methyl methacrylate) (PMMA) film on a microcantilever were simultaneously acquired by photothermal cantilever deflection spectroscopy as a function of ultraviolet (UV) irradiation time. Nanomechanical infrared (IR) spectra from the PMMA-coated microcantilever agreed well with the FTIR spectra of PMMA on gold coated silicon wafer. The decreasing intensities of nanomechanical IR peaks represent chemical as well as mechanical information of UV radiation-induced photodegradation processes in the PMMA which cannot be obtained by a conventional FTIR technique. The observed decrease in the resonance frequency of the microcantilever is related to the change in the Young’s modulus of the PMMA under UV exposure. |
| 저자 |
윤민혁1, 전상민1, Seonghwan Kim2, Thomas Thundat3
|
| 소속 |
1포항공과대, 2Univ. of Alberta, 3Canada |
| 키워드 |
Photothermal cantilever deflection spectroscopy; Photosensitive polymer; Nanomechanical IR spectrum
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
