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- W4288284443 abstract "Surface segregation of the low-molecular weight component in a polymeric mixture leads to degradation of industrial formulations. We report a simultaneous phase separation and surface migration phenomena in oligomer-polymer and oligomer-gel systems following a temperature quench. We compute equilibrium and time varying migrant density profiles and wetting layer thickness using coarse grained molecular dynamics and mesoscale hydrodynamics simulations to demonstrate that surface migration in oligomer-gel systems is significantly reduced due to network elasticity. Further, phase separation processes are significantly slowed in gels, modifying the Lifshitz-Slyozov-Wagner (LSW) law $ell(tau) sim tau^{1/3}$. Our work allows for rational design of polymer/gel-oligomer mixtures with predictable surface segregation characteristics." @default.
- W4288284443 created "2022-07-28" @default.
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- W4288284443 date "2019-07-09" @default.
- W4288284443 modified "2023-09-30" @default.
- W4288284443 title "Gelation impairs small molecule migration in polymer mixtures" @default.
- W4288284443 doi "https://doi.org/10.48550/arxiv.1907.04014" @default.
- W4288284443 hasPublicationYear "2019" @default.
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