Synthesis and gas permeation properties of thermally rearranged poly(ether-benzoxazole)s with low rearrangement temperatures

A series of poly(ether-benzoxazole)(PEBO) for gas separation were prepared from 9,9-bis[4-(4-amino-3-hydroxylphenoxy)phenyl]fluorene based hydroxyl-containing poly(ether-imide)s (HPEIs) with low rearrangement temperatures.