Keywords :
Gas sorption , permeation , diffusion , Permeabilitycoefficient , Henry sorption , Dual-mode sorption , Langmuir sorption , Partial immobilization model , Sub-Tg annealing , Quenching , CO2 , plasticization , Pressureconditioning , microvoid , glassy polymer , physical treatment , Unrelaxed volume , Solubility coefficient