For our project, we are making polymers using thiol adduct. Crosslinked polymers were made using post polymerization modification process with thiol monomers with different chain lengths and different crosslinking densities to find out the activation energy of each system. And in our project, we used GPC and rheometer to analyze our material to make sure the polymers are in good shape and can be used for later analysis. Results showed that as the crosslinking density goes up, the polymer would be crosslinked at a higher rate which yields an undesired result. Reducing the cross-linking density would be easier to control the speed of the crosslinking process and yield a better-crosslinked polymer network. In conclusion, in our results, the 100:6 system was better controlled than the 100:8 system and 200:16 system but all systems gave a lower dispersity and good temperature sweep and frequency sweep results. All the systems can be used to move on to test the activation energy.
Author(s): Riley Way, Chemistry Major
Advisor(s): Dominik Konkolewicz, Department of Chemistry and Biochemistry
Shiwanka Wanasinghe, Department of Chemistry and Biochemistry
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