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Porous Electroactive and Biodegradable Polyurethane Membrane through Self‐Doping Organogel
Author(s) -
Fang Wei,
Sun Fuhua,
Tang Jiajing,
Zhao Qing,
Chen Jie,
Lei Xiaoyu,
Zhang Jinzheng,
Zhang Yinglong,
Zuo Yi,
Li Jidong,
Li Yubao
Publication year - 2021
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202100125
Subject(s) - materials science , membrane , chemical engineering , copolymer , polyurethane , polyaniline , aniline , thermal stability , polymer , polymer chemistry , doping , conductive polymer , electrospinning , porosity , composite material , organic chemistry , chemistry , polymerization , biochemistry , optoelectronics , engineering
In order to improve the processability of conductive polyurethane (CPU) containing aniline oligomers, a new CPU containing aniline trimer (AT) and l ‐lysine (PUAT) are designed and synthesized. Further, the 3D porous PUAT membranes have been prepared by a simple gel cooperated with freeze‐drying method. Chemical testings and conductive properties testify a self‐ doping model of PUAT based on the rich electronic l ‐lysine and electroaffinity AT moities. The self‐doping behavior further endows the PUAT copolymers specific characteristics such as high electrical conductivity and the formation of the polaron lattice like‐structure in good solvent dimethyl sulfoxide. The combination of organogel and freeze‐drying could prevent the collapse of pore structure when the copolymers are molded as membranes. The synergistic effect of l ‐lysine and AT components has a strong influence on the dissolution, degradation, thermal stability, and mechanical properties of PUAT. The excellent properties of PUAT would broad the application of conductive polymers in biomedicine field.