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- W2809689557 abstract "Several bio-based polyhydroxyls are successfully synthesized by using succinic acid, obtained via Arundo donax fermentation and characterized by 1H NMR, GPC, and FT-IR analyses. Furthermore, the bio-based polyhydroxyls, consisting of a wide spectrum of compounds in terms of chemical structure and molecular weight, are used as substitute of conventional polyol in the formulations of Polyurethane and random Urethane-Amide Copolymer bio-based foams. The influence of both amount and typology of bio-based polyhydroxyls on bio-based foam properties is investigated through kinetic analysis, thermo-mechanical characterization, and morphological analysis. The results highlight that the replacement of conventional polyol with the bio-based polyester polyhydroxyls affects the foaming process and consequently the final properties of the free-foamed materials. In particular, the compressive modulus increases by about 140% for a bio-based polyhydroxyl content of 50 wt% together with an increase in foam density. A further increase of these adducts results in a decrease of the glass transition temperature and the mechanical performances. However, the experimental results demonstrate the potentiality of these bio-based foams as commodity in several applications." @default.
- W2809689557 created "2018-07-10" @default.
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- W2809689557 date "2018-08-01" @default.
- W2809689557 modified "2023-10-17" @default.
- W2809689557 title "Synthesis and characterization of sustainable polyurethane foams based on polyhydroxyls with different terminal groups" @default.
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- W2809689557 doi "https://doi.org/10.1016/j.polymer.2018.06.077" @default.
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