Glass-Transition Temperatures in CO2 + Polymer Systems: Modeling and Experiment

作者：Kasturirangan Anupama; Koh Carolyn A; Teja Amyn S^*

来源：Industrial & Engineering Chemistry Research, 2011, 50(1): 158-162.

DOI：10.1021/ie100479z

We extend a previously published compressible lattice model to the prediction of glass-transition temperatures in CO2 + polymer systems. We have applied the model to published data as well as to new measurements of glass-transition temperatures in CO2 + poly(methyl methacrylate) (PMMA) and CO2 + poly(lactic acid) (PLA) systems. We demonstrate that the model is able to predict glass-transition temperatures in CO2 + polymer systems using a parameter that is obtained from sorption data and a second parameter that is obtained from FTIR measurements. The parameters are not dependent on temperature, pressure, or polymer molecular weight.

• 出版日期2011-1-6