Querioz, D.P.; de Pinho, M.N. Structural characteristics and gas permeation properties of polydimethylsiloxane/poly(propylene oxide) urethane/urea bi-soft segment membranes. Polymer 2005, 46, 2346–2353. [CrossRef] 24. Wang, Z.; Lv, P.; Hu, Y.; Hu, K. Thermal degradation study of ...