Abstract
A series of polyvinylpyrrolidone-stabilized heteropolyacids (PVP-HPAs) are generated by self-assembly of HPAs and PVP in methanol. The PVP-HPAs are then employed as catalysts for the synthesis of poly(oxymethylene) dimethyl ethers (DMM n , n⩾1) by the methanolysis of trioxane. The results suggest that the acidity of PVP-HPAs is tunable by changing the ratio of PVP and HPAs, which is a key factor for the selectivity of the DMM n product. By optimizing the composition and reaction conditions, two types of PVP-HPA, PVP-phosphotungstic acid (PVP-HPW) in a PVP/HPW ratio of 1/4:1 and PVP-silicotungstic acid (PVP-HSiW) in a PVP/HSiW ratio of 1/4:3/4, respectively afford 52.4% and 50.3% yields of DMM2–5. The optimized catalysts are reusable for a minimum of 10 times without a significant drop in performance.
Similar content being viewed by others
References
Burger J, Siegert M, Ströfer E, Hasse H. Poly(oxymethylene) dimethyl ethers as components of tailored diesel fuel: properties, synthesis and purification concepts. Fuel, 2010, 89: 3315–3319
Zhao Q, Wang H, Qin ZF, Wu ZW, Wu JB, Fan WB, Wang JG. Synthesis of polyoxymethylene dimethyl ethers from methanol and trioxymethylene with molecular sieves as catalysts. J Fuel Chem Technol, 2011, 39: 918–923
Gao XC, Yang WM, Liu ZC, Gao HX. Catalytic performance of HZSM-5 molecular sieve for synthesis of polyoxymethylene dimethyl ethers. Chin J Catal, 2012, 33: 1389–1394
Zhao YP, Xu Z, Chen H, Fu YC, Shen JY. Mechanism of chain propagation for the synthesis of polyoxymethylene dimethyl ethers. J Energy Chem, 2013, 22: 833–836
Fleisch TH, Sills RA. Large-scale gas conversion through oxygenates: beyond GTL-FT. Stud Surf Sci Catal, 2004, 147: 31–36
Lei YH, Sun Q, Xu CZ, Shen JY. Theoretical calculations on the thermodynamics for the synthesis reactions of polyoxymethylene dimethyl ethers. Acta Chim Sinica, 2009, 67: 767–772
Moulton DS, Naegeli DW. Preparation of a diesel fuel having improved qualities. US Patent, US 5746785A, 1998
Stroefer E, Schelling H, Hasse H, Blagov S. Method for the production of oligomeric poly(oxymethylene) dialkyl ethers from trioxane and dialkyl ethers in the presence of acidic catalysts. World Patent, WO 2006134081A1, 2006
Chen J, Tang ZH, Xia CG, Zhang XZ, Li Z. Method for producing polyoxymethylene dimethyl ethers from methanol and trioxane in the presence of an ionic liquid acidic catalyst. PRC Patent, CN 101182367A, 2008
Chen J, Song HY, Xia CG, Zhang XZ, Tang ZH. Method for synthesizing polyoxymethylene dimethyl ethers by ionic liquid catalysis. US Patent, US 20100056830A1, 2010
Chen J, Song HY, Xia CG, Li Z. Method for synthesizing polyoxymethylene dimethyl ethers utilizing ionic liquid catalyst in circulating tubular reactor. US Patent, US 20110288343A1, 2011
Doucet C, Germanaud L, Couturier JL, Dubois JL, Sage JM. Symmetric and asymmetric polyoxymethylene dialkyl ethers as additives and components of hydrocarbon distillates. France Patent, FR 2906815A1, 2011
Deng WP, Liu M, Zhang QH, Tan XS, Wang Y. Acid-catalysed direct transformation of cellulose into methyl glucosides in methanol at moderate temperatures. Chem Commun, 2010, 46: 2668–2670
Deng WP, Liu M, Zhang Q, Wang Y. Direct transformation of cellulose into methyl and ethyl glucosides in methanol and ethanol media catalyzed by heteropolyacids. Catal Today, 2011, 164: 461–466
Mizuno N, Misono M. Heterogeneous catalysis. Chem Rev, 1998, 98: 199–218
Misono M. Unique acid catalysis of heteropoly compounds (heteropolyoxometalates) in the solid state. Chem Commun, 2001, 1141–1152
Bielański A, Dziembaj R, Małecka-Lubańska A, Poźniczek J, Hasik M, Drozdek M. Polyaniline supported heteropolyacid (H4SiW12O40) as the catalyst for MTBE synthesis. J Catal, 1999, 185: 363–370
Kim H, Jung JC, Yeom SH, Lee KY, Song IK. Preparation of H3PMo12O40 catalyst immobilized on polystyrene support and its application to the methacrolein oxidation. J Mol Catal A: Chem, 2006, 248: 21–25
Leng Y, Zhang WJ, Wang J, Jiang PP. A novel heteropolyanionbased amino-containing cross-linked ionic copolymer catalyst for epoxidation of alkenes with H2O2. Appl Catal A: Gen, 2012, 445–446: 306–311
Leng Y, Qiu XQ, Jiang PP, Wang J. Synthesis of polyvinyl pyrrolidoneheteropolyacid acidic hybrid catalyst and its catalytic activity for esterification reactions. Chin J Catal, 2012, 33: 1224–1228
Chen J, Fang XL, Duan XP, Ye LM, Lin HQ, Yuan YZ. PVP-stabilized heteropolyacids as reusable self-assembling catalysts for alcoholysis of cellulosic saccharides. Green Chem, 2014, 16: 294–302
Okuhara T, Nishimura T, Misono M. Novel microporous solid “superacids”: CsxH3−x PW12O40 (2 ⩽x ⩽ 3). Stud Surf Sci Catal, 1996, 101: 581–590
Leng Y, Wang J, Zhu DR, Ren XQ, Ge HQ, Shen L. Heteropolyanionbased ionic liquids: reaction-induced self-separation catalysts for esterification. Angew Chem Int Ed, 2009, 48: 168–171
Shi SJ, Tu JP, Mai YJ, Zhang YQ, Tang YY, Wang XL. Structure and electrochemical performance of CaF2 coated LiMn1/3Ni1/3Co1/3O2 cathode material for Li-ion batteries. Electrochim Acta, 2012, 83: 105–112
Song L, Gao J, Li J. Sensitized luminescence of water-dispersible CaF2:RE3+ (RE=Eu, Tb, Ce/Tb) nanoparticles through surfactant coating ligands. J Lumin, 2014, 151: 18–21
Das S, Ali M, Saha S. Effect of solvent characteristics on the photophysics of hydroxyl aromatic compounds. J Solution Chem, 2011, 40: 299–306
Thomazeau C, Olivier-Bourbigou H, Magna L, Luts S, Gilbert B. Determination of an acidic scale in room temperature ionic liquids. J Am Chem Soc, 2003, 125: 5264–5265
Walker JF, Chadwick AF. Trioxane as a source of formaldehyde. Ind Eng Chem, 1947, 39: 974–977
Dziembaj R, Małecka A, Piwowarska Z, Bielański A. XPS study of polyaniline supported dodecatungstosilicic acid catalyst. J Mol Catal A: Chem, 1996, 112: 423–430
Turek W, Edyta Stochmal P, Proń A, Haber J. Propylene oxidation over poly(azomethines) doped with heteropolyacids. J Catal, 2000, 189: 297–313
Rothschild WG. Binding of hydrogen donors by peptide groups of lactams. Identity of the interaction sites. J Am Chem Soc, 1972, 94: 8676–8683
Dianat S, Tangestaninejad S, Yadollahi B, Bordbar A-K, Moghadam M, Mirkhani V, Mohammadpoor-Baltork I. Stability investigation of some heteropolyoxotungstate and heteropolyoxomolybdate salts in buffer solutions. J Mol Liq, 2012, 174: 76–79
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Fang, X., Chen, J., Ye, L. et al. Efficient synthesis of poly(oxymethylene) dimethyl ethers over PVP-stabilized heteropolyacids through self-assembly. Sci. China Chem. 58, 131–138 (2015). https://doi.org/10.1007/s11426-014-5257-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11426-014-5257-x