A curing agent method to synthesize ordered mesoporous carbons from linear novolac phenolic resin polymers

作者：Huang, Yan; Yang, Jianping; Cai, Huaqiang; Zhai, Yunpu; Feng, Dan; Deng, Yonghui; Tu, Bo; Zhao, Dongyuan^*

来源：Journal of Materials Chemistry, 2009, 19(36): 6536-6541.

DOI：10.1039/b908183f

• COPOLYMER
• THERMOSETS
• FRAMEWORKS
• BLENDS
• SILICA
• ENERGY
• ROUTE

In this paper, we report a curing agent method for the synthesis of ordered mesoporous carbonaceous materials from a linear polymer precursor. 3-D Body-centered cubic (Im (3) over barm) and 2-D hexagonal (p6mm) ordered mesoporous carbons have been obtained from the blends of hexamethyltetramine (HMTA) treated novolac precursor and amphiphilic triblock copolymers Pluronic F127 and PEO-PBO-PEO B50-6600 via the EISA strategy. The mesoporous carbons have a 3-D carbonaceous framework with low nitrogen content, and uniform mesopores (3.3-3.8 nm), BET surface areas (similar to 690 m(2)g(-1)) and pore volumes (similar to 0.49 cm(3)g(-1)). The key to the synthesis is the use of HMTA as a curing agent to cross-link novolac precursors obtained under acidic conditions. Methylene released by HMTA at elevated temperature can cause the linear novolac 3-D cross-linking to form a thermosetting polymeric framework. The curing agent strategy extends the composition of mesoporous polymeric frameworks.

• 出版日期2009
• 单位复旦大学