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Abstract
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| Supramolecular polymer networks differ from their chemically crosslinked counterparts by the fact that the intermolecular bonds between associating groups can be created and destroyed reversibly, and this has a very strong effect on the dynamical properties and relaxation response of these materials. A detailed understanding of the effect that the association and dissociation kinetics of the reversible junctions have on the self-diffusion of associating networks is still missing, and it is important in order to predict and understand the mechanical properties, stability and self-healing capabilities of these type of soft materials. In a recent series of publications [1-2], the diffusion of linear and star polymers with associating groups was studied by means of forced Rayleigh scattering, showing an unexpected superdiffusive behaviour over a wide range of time and length scales. In this talk, we explain the origin of the observed superdiffusive behaviour, by means of scaling arguments, analytical theory and simulations. | |
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International
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Si |
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Congress
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British Society of Rheology Midwinter Meeting 2016: Polymer Dynamics & Rheology |
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960 |
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Place
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Reading, U.K. |
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Reviewers
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Si |
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ISBN/ISSN
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0000-0000 |
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Start Date
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12/12/2016 |
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End Date
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14/12/2016 |
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From page
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13 |
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To page
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13 |
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BSR2016_Abstracts |