Processing nanoporous organic polymers in liquid amines

Beilstein Journal of Nanotechnology

Cafer T. Yavuz¹  Damien Thirion¹  Jeehye Byun² 

[1] Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea;Water Cycle Research Center, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14, Seoul, 02792, Korea;

关键词: film;    liquid amine;    nanoparticles;    nanoporous polymer;    processibility;   

DOI  :  10.3762/bjnano.10.179

来源: DOAJ

【 摘 要 】

Rigid network structures of nanoporous organic polymers provide high porosity, which is beneficial for applications such as gas sorption, gas separation, heterogeneous (photo)catalysis, sensing, and (opto)electronics. However, the network structures are practically insoluble. Thus, the processing of nanoporous polymers into nanoparticles or films remains challenging. Herein, we report that nanoporous polymers made via a Knoevenagel-like condensation can be easily processed into nanoparticles (115.7 ± 40.8 nm) or a flawless film by using liquid amines as a solvent at elevated temperatures. FTIR spectra revealed that the carboxyl groups in the nanoporous polymers act as reactive sites for amines, forming new functionalities and spacing the polymeric chains to be dissolved in the liquid amines. The processed film was found to be CO2-philic despite the low surface area, and further able to be transformed into a fine carbon film by thermal treatment.

【 授权许可】

Unknown