A hierarchical porous ionic organic polymer as a new platform for heterogeneous phase transfer catalysis

作者：Sun, Qi; Ma, Shengqian; Dai, Zhifeng; Meng, Xiangju; Xiao, Feng-Shou^*

来源：Journal of Materials Chemistry A, 2015, 3(47): 23871-23875.

DOI：10.1039/c5ta07267k

• CONJUGATED MICROPOROUS POLYMERS
• ULTRA-DEEP DESULFURIZATION
• HYDROGEN-PEROXIDE
• AROMATIC FRAMEWORK
• CARBON NANOTUBES
• MOLECULAR-SIEVES
• AQUEOUS-SOLUTION
• SULFUR-COMPOUNDS
• MILD OXIDATION
• LIQUIDS

In this work we demonstrate for the first time the construction of a hierarchical porous ionic organic polymer via the polymerization of the vinyl-functionalized quaternary phosphonium salt monomer under solvothermal conditions. The resultant polymerized quaternary phosphonium (PQP) salt features a hierarchical porous structure and excellent amphiphilicity. After anion-exchange with peroxotungstate, the afforded W2O11/PQP demonstrates excellent performances as a heterogeneous phase-transfer catalyst in the context of epoxidation of olefin and oxidation of dibenzothiophene when using the environmentally benign H2O2 as the oxidant, superior to the homogeneous counterparts and other types of phase-transfer catalysts. Our work thereby paves a way to advance hierarchical porous ionic organic polymers as a new type of platform for heterogeneous phase transfer catalysis.

• 出版日期2015
• 单位浙江大学