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    Diffusion Coefficients of Water and Leachables in Methacrylate-based Crosslinked Polymers using Absorption Experiments

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    Parthasarathy_2012.pdf (3.749Mb)
    Issue Date
    2012-05
    Author
    Parathasarathy, Ranganathan
    Misra, Anil
    Park, Anil
    Park, Jonggu
    Ye, Qiang
    Spencer, Paulette
    Publisher
    Springer Verlag
    Type
    Article
    Article Version
    Scholarly/refereed, author accepted manuscript
    Rights
    © Springer Science+Business Media, LLC 2012
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    Abstract
    The diffusion of water into dentin adhesive polymers and leaching of unpolymerized monomer from the adhesive are linked to their mechanical softening and hydrolytic degradation. Therefore, diffusion coefficient data are critical for the mechanical design of these polymeric adhesives. In this study, diffusion coefficients of water and leachables were obtained for sixteen methacrylate-based crosslinked polymers using absorption experiments. The experimental mass change data was interpreted using numerical solution of the two-dimensional diffusion equations. The calculated diffusion coefficients varied from 1.05 × 10−8 cm2/sec (co-monomer TMTMA) to 3.15 × 10−8 cm2/sec (co-monomer T4EGDMA). Correlation of the diffusion coefficients with crosslink density and hydrophilicity showed an inverse trend (R2 = 0.41). The correlation of diffusion coefficient with crosslink density and hydrophilicity are closer for molecules differing by simple repeat units (R2 = 0.95). These differences in the trends reveal mechanisms of interaction of the diffusing water with the polymer structure.
    URI
    http://hdl.handle.net/1808/24290
    DOI
    https://doi.org/10.1007/s10856-012-4595-5
    Collections
    • Civil, Environmental & Architectural Engineering Scholarly Works [117]
    Citation
    Parthasarathy, R., Misra, A., Park, J., Ye, Q., & Spencer, P. (2012). Diffusion Coefficients of Water and Leachables in Methacrylate-based Crosslinked Polymers using Absorption Experiments. Journal of Materials Science. Materials in Medicine, 23(5), 1157–1172. http://doi.org/10.1007/s10856-012-4595-5

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    KU Libraries
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    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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