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Impregnation of tungstophosphoric acid on poly(methacrylamide-co-methyl methacrylate) and its acid catalytic activity in TMB alkylation
- Authors
- Lee, Dae-Won; Oh, Jung-Jun; Park, Young-Moo; Eom, Hee Jun; Yeom, Sung Ho; Song, In Kyu; Lee, Kwan-Young
- Issue Date
- 2008
- Publisher
- SPRINGER
- Keywords
- Heteropolyacid; tungstophosphoric acid; poly(methacrylamide-co-methylmethacrylate); 1,3,5-trimethylbenzene; cyclohexene
- Citation
- RESEARCH ON CHEMICAL INTERMEDIATES, v.34, no.8-9, pp.817 - 825
- Indexed
- SCIE
SCOPUS
- Journal Title
- RESEARCH ON CHEMICAL INTERMEDIATES
- Volume
- 34
- Number
- 8-9
- Start Page
- 817
- End Page
- 825
- ISSN
- 0922-6168
- 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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