Journal
POLYMER CHEMISTRY
Volume 7, Issue 17, Pages 2955-2964Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6py00325g
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Funding
- Department of Energy under DOE award [DE-FG02 90ER45438]
- National Science Foundation DMREF program [CHE-1334703]
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Using dissipative particle dynamics (DPD), we developed a computational approach to capture the photo-controlled radical polymerization (photo-growth) of polymer gels containing trithiocarbonate (TTC) groups within the network strands. Using this model, we focused on a primary gel and illuminated the sample to activate the TTCs, which then interacted with monomer and cross-linker in the solution. At low TTC concentrations, gels composed of compatible monomers formed two distinct, spatially separated layers. Conversely, at high TTC concentration, gels formed from incompatible components displayed a well-intermixed structure. Hence, in the presence of light, variations in the TTC concentration provide a new approach for controllably tailoring the structure of polymer gels, and thereby tailoring the functionality of the network.
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