Study of polymer blends with variable architecture via monte carlo simulation
Abstract
This dissertation treats the role of chain architecture in binary polymer blends. Heteropolymer, with chemically identical and thin film geometry blends were studied. For these cases, linear/linear, linear/star and star/star polymer blends were studied. Finally, dendritic polymers of 1st generation were studied. The main aim of this dissertation is the study of the effect of architecture on the miscibility of the above mentioned blends for different chain molecular weights, volume fraction and number of branches of star chains. The study is done with simulation methods using the Bond Fluctuation Model. For heteropolymer blends, it was found that the miscibility of linear/linear blends is lower than that of linear/star chains. Moreover, star/star blends are more miscible than the corresponding linear/star mixtures, and the miscibility increases with the increase of the number of branches of star chains. In mixtures with chemically identical monomers, the drawn conclusions are the opposi ...
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