title: Preparation of a compressible and hierarchically porous polyimide sponge via the sol-gel process of an aliphatic tetracarboxylic dianhydride and an aromatic triamine.
abstract: A compressible and monolithic microporous polyimide sponge was prepared from an aliphatic tetracarboxylic dianhydride and an aromatic triamine. The sponge had a hierarchical pore structure, in which spherical microporous polyimide particles were interconnected to form a macroscopic network. It showed an amphiphilic character, because of the balanced presence of hydrophobic and hydrophilic groups.
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Korea. jichang@snu.ac.kr.
authors.forename: Jeongmin
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Korea. jichang@snu.ac.kr.
authors.forename: Ji Young
authors.initials: JY
authors.lastname: Chang