화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2002년 봄 (04/12 ~ 04/13, 서울대학교)
권호 27권 1호, p.180
발표분야 특별 심포지엄
제목 The Effect of Electric Field on the Interface of a Reactive Blend
초록 Electric fields were used to enhance thermal fluctuations at the interface between two thin liquid films or liquid/air films. Electrically induced instablilities can be used to control the size scale of morphologies.
Here, we applied this technique to reactive blend systems and studied the effect of electric field on the interface of two immiscible polymer thin films. We used blend systems consisting of an amine terminate polystyrene[PS-NH2] and a maleic anhydride functionalized poly(methyl methacrylate) [PMMA-MA], which were synthesized by an anionic polymerization. Each polymer was spin coated from solution onto silicon wafer. The wafer was one of the electrodes (lower electrode). The upper electrode was Indium-thin-oxide (ITO)-coated glass, which was mounted on top of the reactive polymer thin films. This geometry using ITO-coated glass allowed us, via optical microscopy (OM), a direct observation of the temporal evolution of the reactive polymer thin films in the electric field. The interfacial morphology during reaction was investigated by using atomic force microscope (AFM).
저자 채승훈, 정운용, 김진곤
소속 포항공과대
키워드
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