Abstract
The compatibility of six groups 12 miktoarm poly(ethylene oxide)-block-poly(methyl methacrylate) (PEO-b-PMMA) copolymers is studied at 400 K via mesoscopic modeling. The values of the order parameters depend on the architectures of the block copolymers deeply, compared with their chain length. Furthermore, the values of order parameters of the copolymer in the same group are the same. A study of plain copolymers induced by 18 neutral surfaces shows that the microscopic phase is influenced by not only the peculiarities of the inducing surface, but also the architecture of copolymers. The degree of surface roughness plays the most significant role on changing phase separation, the rougher the surface, the higher ordered the microscopic phase. However, the 23141 and 23241-type copolymers which are both PEO-rich composition, presents microscopic phase separation as peculiar lamallae phase morphologies induced by every surfaces, included their plain copolymers.
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Acknowledgements
This work is supported by the Science-Technology Foundation for Middle-Aged and Young Scientists of Shandong Province (BS2010CL048), a Shandong Province Higher School Science & Technology Fund Planning Project (J10LA61), and a Zaozhuang Scientific and Technological Project (200924-2).
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Mu, D., Li, JQ. & Wang, S. MesoDyn simulation study on the phase morphologies of miktoarm PEO-b-PMMA copolymer induced by surfaces. J Polym Res 19, 9910 (2012). https://doi.org/10.1007/s10965-012-9910-9
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DOI: https://doi.org/10.1007/s10965-012-9910-9