Well-ordered mesoporous polymers and carbons based on imide-incorporated soft materials

作者：Liu Yuanyuan; Ohnishi Koshi; Sugimoto Shin; Okuhara Kenta; Maeda Rina; Nabae Yuta; Kakimoto Masa aki; Wang Xiaolin; Hayakawa Teruaki^*

来源：Polymer Chemistry, 2014, 5(22): 6452-6460.

DOI：10.1039/c4py00373j

The preparation of well-ordered functional mesoporous polymers through the direct doping and soft templating approach remains challenging and has so far been only limited to specific systems, because of the difficulty to balance the interaction between templates and precursors. Herein we demonstrate the successful preparation of an imide-functionalized mesoporous polymer and its derived nitrogen-doped mesoporous carbon with high regularity, tunable morphology, and high surface area, using highly stable aromatic imide as the nitrogen source. Amic acid, the precursor of imide, undergoes a co-self-assembly process with an amphiphilic block copolymer template and transforms into imide on heating. Upon calcination at 350 degrees C the template F127 is removed without damaging the imide linkage, leading to a highly ordered polymer network with the intrinsic imide functionality. Further carbonization at 600 degrees C allows the formation of nitrogen-doped mesoporous carbon. This newly developed system, which exhibits a high degree of flexibility, allows precise morphological control of 1-dimensional lamellar, 2-dimensional hexagonal and 3-dimensional cubic mesostructures on the basis of adjustments of each component in the system. This homologous series of imide functionalized mesoporous polymers and nitrogen-doped mesoporous carbons have potential applications in the field of advanced materials.

• 出版日期2014-11-21
• 单位清华大学