| abstract |
Described are compounds that are capable of forming adlayers, the compounds comprising at least one headgroup A, an optional linker B, a polymer C, a terminal group D and an optional crosslinking group R, whereinn the headgroup A is a compound of the following formula nn n n n n n n n n n n n wherein n X is independently selected from an acidic group, n Y is a group derived from a convenient coupling group, n Z 1 , Z 3 , and Z 4 are C or N + n Z 2 , Z 5 and Z 6 are C-L 1 or N + -L, wherein n L 1 is H or an electron withdrawing group, n L is C 1 -C 6 alkyl, in particular C 1 -C 4 alkyl n L 2 and L 3 are independently selected from H or C 1 -C 6 alkyl, or L 2 may form together with L 1 or L of Z 6 a heterocycle, in particular a positively charged heterocycle, n n is 0, or 1, or 2, or 3, n m is 0 or 1. |