| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.74 |
| 발표분야 |
고분자 |
| 제목 |
Surface Modified Carbon Nanotube/Conducting Polymer Composites in Compressed CO2: Synthesis and Characterization |
| 초록 |
Conducting polypyrrole/multi-walled carbon nanotube (PPy/MWNTs) composites were prepared by in-situ chemical oxidative polymerization of pyrrole in the presence of MWNTs in compressed CO2 or supercritical carbon dioxide (scCO2). Prior to the polymerization, MWNTs were surface modified with silane coupling agent 3-(trimethoxysilyl) propyl methacrylate (MPS) in order to disperse well in scCO2. TEM and FESEM analysis showed that a tubular layer of PPy film is coated on the MWNTs surfaces, which were a few nanometers in thickness. The incorporation of MWNTs in the composite was endorsed by FT-IR. The composite synthesized in scCO2 have been shown to possess higher thermal stability and electrical conductivity. This environmentally benign green synthetic route offers advantages of easy separation and resolves problems related to solvent removal. The analytical results showed that the use of scCO2 to be an efficient way to prepare nanocomposites and the feasibility of using carbon nanotube based composites for the development of molecular electronics and other fields. |
| 저자 |
Yuvaraj Haldorai1, 임권택2, Long Quang Pham1, 심재진1
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| 소속 |
1영남대, 2부경대 |
| 키워드 |
conducting polymer; carbon nanotube; supercritical fluid; surface modification
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| E-Mail |
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| 원문파일 |
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