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Seeking help with the Polyer UNIFAC model in Aspen Polymer Plus

2019-04-23View Original

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As indicated in the title, I have recently been using the Polymer-UNIFAC model to calculate the activity coefficients of polymers in mixtures. The calculations show that the activity coefficient of polymers in Aspen is related to the copolymer composition and molecular weight. However, upon checking the user manual, the Polymer UNIFAC model provided in it does not take into account the relevant properties of polymers. I’m seeking help from experts: where in Aspen’s Polymer-UNIFAC model are the polymer copolymer composition and molecular weight properties entered?

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