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Effect of Perpendicular Shear Force on the Interfacial Morphology of Reactive Polymer Bilayer
Author(s) -
Kim Hwang Yong,
Joo Wonchul,
Kim Jin Kon
Publication year - 2008
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200700442
Subject(s) - perpendicular , bilayer , shear (geology) , materials science , shear force , composite material , surface finish , morphology (biology) , polymer , copolymer , chemistry , geometry , geology , membrane , paleontology , biochemistry , mathematics
We investigated the effect of shear forces perpendicular to the interface on the interfacial morphology of a reactive bilayer. It was observed that the perpendicular shear force greatly enhanced the roughness of the interface compared with parallel shear force. The main role of in situ formed graft copolymers is not to increase greatly the roughness of the interface, but to stabilize the interfacial morphology. We also observed that microemuslsions were observed at both the PMMA and PS layers, which is distinctly different from the situation obtained under parallel shear force (or without shear) that the microemlusions were seen in only the PMMA layer.