| 학회 | 한국화학공학회 |
| 학술대회 | 2004년 봄 (04/23 ~ 04/24, 공주대학교) |
| 권호 | 10권 1호, p.16 |
| 발표분야 | 고분자 |
| 제목 | Structured Polymer Film Preparation by Spin Coating of Polymer/Solvent/Non-solvent |
| 초록 | Breath figure method is introduced to prepare porous polymer film with hexagonally packed pores of a specific size from a few hundred of nanometer to several micrometer. During spin coating, non-solvent of water is supplied from humid air and condensed on polymer/solvent solution. After complete drying of non-solvent(water) and solvent, traces of condensed water droplets remain in polymer film. Specially, when solvent is water miscible, humid environment could be avoid by adding small amount of water to polymer/solvent. Simply by increasing water content and decreasing rotating speed, pore size could be controlled in a one-step. When boiling point of non-solvent is higher than that of solvent, non-solvent content increases due to active solvent evaporation during spin coating. Phase separation by increase in non-solvent content makes structure in spin-coated film. Phase separated film has different refractive index from compact film without phase separation. By varying polymer molecular weights and non-solvent content, optical thin films could be prepared, which have anti-reflection (AR) effect and different transmittances (or reflectance) of visible lights with various wavelengths. |
| 저자 | 박민수, 김진곤 |
| 소속 | 포항공과대 |
| 키워드 | Polymer; Film; Spin Coating |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
