Effects of trimethylaluminum vapor pressure and exposure time on inorganic loading in vapor phase infiltrated PIM-1 polymer membranes

Vapor phase infiltration (VPI) is a post-polymerization modification method for infusing inorganic clusters into polymer to create organic-inorganic hybrid materials with properties that are unique from the parent polymer. The of these can vary amount VPI generated loading. However, relationship between processing conditions and loading still not fully understood. In this paper, effects dose pressure exposure time on explored using technologically relevant membrane material known as “polymer intrinsic microporosity 1” (PIM-1). At sufficiently low pressures times (i.e., before saturation), be controlled both vapor time. appears saturate system when polymer's functional groups become populated bound precursors. These experimental results understood use recently developed reaction-diffusion model VPI. Critical applying post-deposition measurements re-normalizing mass total number in