This paper reports the preparation of newly synthesized bio-epoxy monomers, suitable for replacing petrochemical-derived epoxy resins. An original green method able to produce epoxy monomers starting from neat carbohydrates, waste flours, and even from the organic fraction of municipal solid waste (OFMSW), was here proposed. Hence, for the first time, the epoxidation of carbohydrates was attained only through the exposition to UV and ozone radiation, without using any organic solvent to carry out the reaction. Besides the innovation in the epoxidation method, this work explored the possibility of valorizing waste materials, by recycling carbohydrate scraps; in particular, the exposition of waste flours and municipal solid waste to UV and ozone and their consequent epoxidation allowed obtaining green precursors for the production of a bio-based epoxy resin. Applicability and suitability of the synthesized compounds for epoxy monomers were investigated by curing experiments with a selected amount of a model cycloaliphatic amine-type hardener, i.e. isophorodiamine (IPDA). (C) 2020 Elsevier Ltd. All rights reserved.
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Korea Adv Inst Sci & Technol KAIST, Dept Chem, 291 Daehak Ro, Daejeon 34141, South Korea
Lotte Chem Res Inst, 115 Gajeongbuk Ro, Daejeon 34110, South KoreaKorea Adv Inst Sci & Technol KAIST, Dept Chem, 291 Daehak Ro, Daejeon 34141, South Korea
Lee, Myung Ock
Kim, Ji Hyun
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Lotte Chem Res Inst, 115 Gajeongbuk Ro, Daejeon 34110, South KoreaKorea Adv Inst Sci & Technol KAIST, Dept Chem, 291 Daehak Ro, Daejeon 34141, South Korea
Kim, Ji Hyun
Park, JaeYun
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Lotte Chem Res Inst, 115 Gajeongbuk Ro, Daejeon 34110, South KoreaKorea Adv Inst Sci & Technol KAIST, Dept Chem, 291 Daehak Ro, Daejeon 34141, South Korea
Park, JaeYun
Kim, Sang Youl
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Korea Adv Inst Sci & Technol KAIST, Dept Chem, 291 Daehak Ro, Daejeon 34141, South KoreaKorea Adv Inst Sci & Technol KAIST, Dept Chem, 291 Daehak Ro, Daejeon 34141, South Korea