Effects of bulky substituents on oxygen permeation behaviors of polystyrene‐based polymers

Abstract

Abstract Polymers of β‐cyclodextrinyl substituted styrene and 4′‐oligodimethylsiloxanyl‐4‐vinyldiphenyl were synthesized. Their oxygen perm selectivity was studied from the viewpoint of investigating the effects of the introduction of bulky p ‐substituents to polystyrene on their permeation behaviors. The bulky substituents were quite effective in enhancing the permeability; however, the selectivity in permeation decreased with the increase in permeability.