The application pertains to derivatives of isosorbide according to general formula (I) wherein R' and R" independently from each other represent a represent a hydrogen atom or a polymeric moiety like (CH 2 -CHR 1 -O) x -H. This polymeric moiety is composed of epoxide-based monomers, described as H 2 COCH-R 1 , where R 1 represents either a hydrogen atom, in the case of ethylene oxide, or an alkyl or alkenyl moiety with 1 to 33 C-atoms, which is saturated or unsaturated, branched or linear. This polymer moiety can be a homopolymer or a copolymer, x being the total degree of polymerization (DP). In the case of a block copolymer composed of monomer A (DP = a), preferably ethylene oxide or propylene oxide and monomer B (DP = b), preferably an alkyl or alkenyl moiety with 1 to 33 C-atoms, which is saturated or unsaturated, branched or linear, x = a + b. x is zero, or a number from 1 to 50, with the proviso that R' and R" are not both hydrogen atoms.
