A disubstituted diaryloxybenzoheterodiazole compound having general formula (I) or (II): wherein: - Z represents a sulfur atom, an oxygen atom, a selenium atom; or a group NR 6 wherein R 6 is selected from linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkyl groups, or from optionally substituted aryl groups; - R 1 , R 2 and R 3 , identical or different, represent a hydrogen atom; or are selected from linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkyl groups, optionally containing heteroatoms, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted, linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkoxy groups, optionally substituted phenoxy groups, or a cyano group; - or R 1 and R 2 ,may optionally be bound together so as to form, together with the carbon atoms to which they are bound, a saturated, unsaturated, or aromatic, cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, optionally containing one or more heteroatoms such as oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; - or R 2 and R 3 may optionally be bound together so as to form, together with the carbon atoms to which they are bound, a saturated, unsaturated, or aromatic, cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally containing one or more heteroatoms such as oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; - R 4 , identical or different, represent hydrogen atoms; or are selected from linear or branched, preferably linear C 1 -C 20 , preferably C 1 -C 8 , alkyl groups,,; - R 5 , identical or different, are selected from linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkyl groups, optionally containing heteroatoms, optionally substituted cycloalkyl groups; - n and m, identical or different, are 0 or 1, provided that at least one of m and n is 1. - Z represents a sulfur atom, an oxygen atom, a selenium atom; or a group NR 6 wherein R 6 is selected from linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkyl groups, or from optionally substituted aryl groups; - R 1 , R 2 and R 3 , identical or different, represent a hydrogen atom; or are selected from linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkyl groups, optionally containing heteroatoms, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted, linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkoxy groups, optionally substituted phenoxy groups, or a cyano group; - or R 1 and R 2 ,may optionally be bound together so as to form, together with the carbon atoms to which they are bound, a saturated, unsaturated, or aromatic, cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, optionally containing one or more heteroatoms such as oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; - or R 2 and R 3 may optionally be bound together so as to form, together with the carbon atoms to which they are bound, a saturated, unsaturated, or aromatic, cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally containing one or more heteroatoms such as oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; - R 4 , identical or different, represent hydrogen atoms; or are selected from linear or branched, preferably linear C 1 -C 20 , preferably C 1 -C 8 , alkyl groups,,; - R 5 , identical or different, are selected from linear or branched C 1 -C 20 , preferably C 1 -C 8 , alkyl groups, optionally containing heteroatoms, optionally substituted cycloalkyl groups; - n and m, identical or different, are 0 or 1, provided that at least one of m and n is 1. <EOS>