Conjugated microporous polymer foams with excellent thermal insulation performance in a humid environment.

ABSTRACT: This work reported two monolithic conjugated microporous polymer (CMP) foams synthesized through the Sonogashira-Hagihara cross-coupling reaction without mechanical stirring. The as-synthesized (CMP-ED and CMP-PT) foams exhibited superior hydrophobicity and low apparent density of 58 mg cm^-3 and 63 mg cm^-3. In addition, CMP-ED displayed a low thermal conductivity of 34.04 mW m^-1 K^-1, which was comparable with commercial SiO₂ aerogels (34.09 mW m^-1 K^-1) at 50% humidity conditions. When the environment humidity was raised from 50% to 70%, the thermal conductivity of CMP-ED and commercial SiO₂ aerogels improved by 0.12% and 7%, respectively. Furthermore, XRD, FTIR, BET and TG were conducted to evaluate the

SUBMITTER: Feng N 

PROVIDER: S-EPMC8697720 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature