caa a22 4500 606173854 CHVBK 20210128100735.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11244-015-0386-9 doi (NATIONALLICENCE)springer-10.1007/s11244-015-0386-9 Davis Mark Chemical Engineering, California Institute of Technology, 91125, Pasadena, CA, USA aut Heterogeneous Catalysis for the Conversion of Sugars into Polymers [Elektronische Daten] [Mark Davis] The synthesis of commodity polymers from biomass presents interesting challenges and opportunities for new catalytic chemistries. Starting from glucose, reaction pathways to a variety of monomers for commodity polymers are presented. The first step for each pathway is the isomerization of glucose to fructose. This reaction can now be accomplished in aqueous media with hydrophobic, large pore molecular sieves that contain Lewis acid sites as catalysts. A typical catalyst is a pure-silica molecular sieve having the zeolite beta topology and containing a small amount of framework Sn4+ (Sn-Beta). Dehydration of fructose into 5-hydroxymethylfurfural (HMF) provides a convenient path that can lead to 2,5-furandicarboxylic acid (FDCA) for the synthesis of polyethylene furanoate (PEF)or purified terephthalic acid (PTA) (via Diels-Alder reactions) for the synthesis of polyethylene terephthalate(PET). Recent progress on the dehydration of lactic acid could open new routes to acrylic acid and acrylonitrile that are used to produce polyacrylic acid and polyacrylonitrile, respectively, provided more selective catalysts for the retro-aldol deconstruction of fructose are developed. Springer Science+Business Media New York, 2015 Sugars nationallicence Monomers nationallicence Heterogeneous catalysis nationallicence Biomass nationallicence Topics in Catalysis Springer US; http://www.springer-ny.com 58/7-9(2015-05-01), 405-409 1022-5528 58:7-9<405 2015 58 11244 https://doi.org/10.1007/s11244-015-0386-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-015-0386-9 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Davis Mark Chemical Engineering, California Institute of Technology, 91125, Pasadena, CA, USA aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/7-9(2015-05-01), 405-409 1022-5528 58:7-9<405 2015 58 11244