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Impregnation of tungstophosphoric acid on poly(methacrylamide-co-methyl methacrylate) and its acid catalytic activity in TMB alkylation |
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| Authors: | Dae-Won Lee Jung-Jun Oh Young-Moo Park Hee Jun Eom Sung Ho Yeom In Kyu Song Kwan-Young Lee |
| Affiliation: | 1. Research Institute of Clean Chemical Engineering Systems, Korea University, 36-701, Seoul, South Korea 2. Department of Chemical & Biological Engineering, Korea University, 136-701, Seoul, South Korea 3. Department of Environmental and Applied Chemical Engineering, Kangnung National University, 210-702, Kangwondo, South Korea 4. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 151-744, Seoul, South Korea |
| Abstract: | A poly(methacrylamide-co-methylmethacrylate) (abbreviated PMAA-MMA) polymer support was studied for supporting a heteropolyacid (tungstophosphoric acid, H3PW12O40) with its surface positively charged in the polymerization step. PMAA-MMA supports could be obtained in a porous form by eliminating template reagent molecules (benzylmalonic acid) combined with properly selected monomer (methacrylamide). The amount of amine groups in PMAA-MMA directly determined the amount of H3PW12O40 impregnated, because the amine groups induced a positive charge on the PMAA-MMA surface. Finally, H3PW12O40/PMAA-MMA showed better acid catalytic activities than unsupported H3PW12O40 in alkylation of 1,3,5-trimethylbenzene with cyclohexene, which confirmed that PMAA-MMA supported H3PW12O40 effectively. |
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