Abstract: Disclosed is a biosourced polymer obtained by dual chemical functionalization of chitosan, usable for catalytic carbonation of cyclic ethers by carbon dioxide, and a binder composition for creating layers and/or coatings for road construction and/or civil engineering, marking materials, or sealing or insulation materials. The composition contains a polyhydroxyurethane polymer binder resulting from the reaction of at least one polyamine with at least one polycyclocarbonate. The polycyclocarbonate was obtained by carbonating a (cyclic) poly(ether) with carbon dioxide catalyzed by the biosourced polymer.

Abstract: The invention relates to a biosourced polymer obtained by dual chemical functionalization of chitosan, usable for catalytic carbonation of cyclic ethers by means of carbon dioxide, and a binder composition for creating layers and/or coatings for road construction and/or civil engineering, marking materials, or sealing or insulation materials. Said composition contains a polyhydroxyurethane polymer binder resulting from the reaction of at least one polyamine with at least one polycyclocarbonate. Said polycyclocarbonate was obtained by carbonating a (cyclic) poly(ether) with carbon dioxide catalyzed by said biosourced polymer.

Abstract: The disclosure relates to fluorinated compounds of following formula (I): where: X1 is a sulfur atom; X2 and X3 are an oxygen atom or sulfur atom provided that, if one of said X2 and X3 is a sulfur atom, the other of said X2 and X3 is an oxygen atom and vice versa; and R1, R2 and R3 are each independently a fluorine atom or hydrogen atom, provided that at least one of said R1, R2 and R3 is a fluorine atom. The disclosure further relates to use of these compounds as organic solvents of at least one lithium salt.