Benito, J. Vidal, J. Sánchez-Laínez, J. Zornoza, B. Téllez, C. Martín, S. Msayib, K.J. Comesaña-Gándara, B. McKeown, N.B. Coronas, J. Gascón, I. The fabrication of ultrathin films and their gas separation performance from polymers of intrinsic microporosity with two-dimensional (2D) and three-dimensional (3D) chain conformations J. colloid interface sci. 10.1016/j.jcis.2018.10.075 2019 2019