Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2084
Title: Solubility and diffusivity of methylmethacrylate and butylacrylate monomers in a MMA-BA copolymer
Authors: Yürekli, Yılmaz
Alsoy Altınkaya, Sacide
Zielinski, John M.
Yürekli, Yılmaz
Alsoy Altınkaya, Sacide
Izmir Institute of Technology. Chemical Engineering
Keywords: Copolymers
Butyl acrylates
Diffusion
Flory huggins theory
Gravimetric sorption
Methyl methacrylates
Issue Date: Aug-2007
Publisher: John Wiley and Sons Inc.
Source: Yürekli, Y., Alsoy Altınkaya, S., and Zielinski, J. M. (2007). Solubility and diffusivity of methylmethacrylate and butylacrylate monomers in a MMA-BA copolymer. Journal of Polymer Science, Part B: Polymer Physics, 45(15), 1996-2006. doi:10.1002/polb.21189
Abstract: Mutual diffusion coefficients and sorption isotherms of methyl methacrylate (MMA) and butyl acrylate (BA) monomers in methyl methacrylate-butyl acrylate copolymer (MMA-BA) have been measured by gravimetric sorption. MMA is found to have higher solubility and diffusion rates in the copolymer than BA. Sorption data for MMA were interpreted using classical Flory-Huggins thermodynamic theory with a constant interaction parameter (χ). A modified version of this theory has been applied to correlate the sorption data of BA, which exhibit a temperature and concentration-dependent χ parameter. For MMA, the isotherm data reveal enhanced polymer-solvent interactions with increasing temperature, while for BA the data indicate a drive toward phase separation with increasing temperature. Despite the difference in thermodynamic behavior, both monomers are found to exhibit Fickian diffusion and the diffusivity data are correlated reasonably well with the Vrentas-Duda free volume theory. Some deviation between the free-volume correlation and the experimental data is observed at the lowest temperature and BA concentration examined.
URI: http://doi.org/10.1002/polb.21189
http://hdl.handle.net/11147/2084
ISSN: 0887-6266
0887-6266
1099-0488
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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