| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 | 29권 1호, p.85 |
| 발표분야 | 고분자 가공/블렌드 |
| 제목 | The Effect of Molecular Structure of formed copolymer and shear force on Morphological Changes at Polymer-Polymer Interface |
| 초록 | In this study we investigated the effect of molecular structure of formed copolymer on morphological changes at reactive polymer-polymer interface consisting of glycidylmethacrylate terminated polystyrene (PS-GMA) and an carboxylated poly(methyl methacrylate) (PMMA-COOH).. Because of using three different kinds of PMMA-COOH where the position of carboxylate group is located at the middle, a third and the end of PMMA chain, different molecular structures (block versus graft copolymers) were formed at the interface. We prepared the bilayer film of PS-GMA and PMMA-COOH onto Si-wafer by sequential spin-casting, and reaction was done at 180oC for 24 hrs. The interface morphology was investigated either by AFM after removing of PS by selective solvent, or by cross-sectional TEM. We found that the Y-shape (or graft) copolymers formed in situ increased the interface roughness than block copolymers. Finally, the effect of oscillatory shear force on interfacial roughness was studied. This is supported by Korea Research Foundation (KRF-2002-005-D00008). |
| 저자 | 김황용, 정운용, 김진곤 |
| 소속 | 포항공과대 |
| 키워드 | reacive blend; interface; shear force; molecular structure |
