Liquid sorbitol ether carbonate as intermediate for rigid and segmented non-isocyanate polyhydroxyurethane thermosets

From the Synthesis of Biobased Cyclic Carbonate to Polyhydroxyurethanes: A Promising Route towards Renewable Non‐Isocyanate Polyurethanes

“…The nature of the functional sites will also determine the synthetic routes. Carbonated vegetable oils are obtained through oxidative epoxidation followed by CO 2 carbonation, whereas sugar derivatives are usually directly carbonated thanks carbonation of vicinal diols . Finally, CCs from a wood origin are generally epoxidized through epichlorohydrin addition and CO 2 carbonation .…”

“…This new compound is easily handled thanks to low viscosity, good miscibility with amines, and liquid state at room temperature. Upon mixing these two SOR‐based CCs with IPDA, T g and Young's modulus values of around 180 °C and 4000 MPa, respectively, were obtained, leading to one of the stiffest PHU materials ever reported . Recently, a new route towards bis‐CCs from SOR has been fully investigated, with improved conversion and limited side reactions, with respect to green chemistry principles (solvent‐free, low temperature, and catalyzed reactions).…”

“…On the other hand, thanks to their aromatic structures, wood derivatives, such as lignins or tannins, bring stiffness and thermal stability . Finally, sugar‐based CCs are generally short, stiff, and reactive monomers . The nature of the functional sites will also determine the synthetic routes.…”

“…Carbonated vegetable oils are obtained through oxidative epoxidation followed by CO 2 carbonation, [60] whereas sugar derivatives are usually directly carbonated thanks carbonation of vicinal diols. [35,[114][115][116] Finally, CCs from aw ood origin are generally epoxidized through epichlorohydrin addition and CO 2 carbonation. [124a, 131] The different natures of the obtained CCs play akey role on reactivity and possible side reactions, such as amidification.…”

Polymers Based on Cyclic Carbonates as Trait d'Union Between Polymer Chemistry and Sustainable CO2 Utilization

“…Thec arbonation reaction to afford 6b from the trisglycidyl ether was carried out under 30 bar CO 2 pressure at 100 8Cfor 24 h. [177] 6c is the general formula of the products of carbonation of epoxidized vegetable oils. Industrially sourced sorbitol-based glycidyl ether (accessible by the reactiono fs orbitol with ECH) was therefore carbonated to afford 6b,w hich was miscible with variousa mines for the preparation of PHUs.…”