Fast Fabrication of Porous Amphiphilic Polyamides via Nonconventional Evaporation Induced Phase Separation

作者：Tao Wen, Yuting Gao, Jiajia Zhou, Jie Qiu, Shuo Wang, Joachim Loos, Dujin Wang, Xia Dong · 发表于：ACS Macro Letters · 年份：2023 · DOI：10.1021/acsmacrolett.3c00086 · 被引用次数：20 · 研究领域：Synthesis and properties of polymers、Advanced Sensor and Energy Harvesting Materials、Photonic Crystals and Applications

In the present work, we report a facile approach for the fast fabrication of porous films and coatings of long-chain polyamides through a nonconventional evaporation induced phase separation. Because of its amphiphilic nature, polyamide 12 can be dissolved in the mixture of a high-polarity solvent and a low-polarity solvent, while it could not be dissolved in either solvent solely. The sequential and fast evaporation of the solvents leads to the formation of porous structures within 1 min. Moreover, we have investigated the dependence of the pore structures on composition of the solutions, and have demonstrated that our approach can be applied to other long-chain polycondensates, too. Our findings can provide insight on the fabrication of porous materials by using amphiphilic polymers.