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PC/PMMA/MWCNT Hybrid Films and Their Phase Behavior 배도영1,2, 전상일

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Theories and Applications of Chem. Eng., 2010, Vol. 16, No. 2 1233

화학공학의 이론과 응용 제16권 제2호 2010년

PC/PMMA/MWCNT Hybrid Films and Their Phase Behavior 배도영1,2, 전상일1, 오석빈2, 최승렬2, 유승찬2, 이헌상1,*

1동아대학교; 2삼양사 중앙연구소 (heonlee@dau.ac.kr*)

The blends of polycarbonate (PC) and poly(methyl methacrylate) (PMMA) are well known to be miscible around room temperature and be partially miscible at the temperature higher than a critical point. This behavior is well known as a lower critical solution temperature (LCST) behavior. We prepared transparent PC-PMMA films by solution casting method. We employed Flory-Huggins theory to calculate binodal- and spinodal phase separation curves.

The cloud points are well consistent with the spinodal phase separation curve calculated by F-H theory. We demonstrated the phase behavior of PC-PMMA blends are changed by adding small amount of multiwall carbon nanotubes into the blends. Model calculations are also performed to analyze the change of phase behavior.

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