Patent ID: 8568872

Claim:
A compound capable of forming adlayers and having one of the general formulas (A) to (C) below: wherein A designates at least one headgroup A, B designates an optionally present linker B, C designates a polymer C, D designates an optionally present terminus D and R designates an optionally present crosslinker R, and wherein the headgroup A is a compound of the following formula wherein X is independently from each other selected from an acidic group comprising OH, SH, phosphate, phosphonate, and N + R 2 H, wherein the R are independently from each other selected from H or C 1 -C 6 alkyl, Y is a group derived from a convenient coupling group comprising NL 3 , or N + (L 3 ) 2 , Z 1 , Z 3 , and Z 4 are C or N + Z 2 , Z 5 and Z 6 are C-L 1 or N + -L, wherein L 1 is H or an electron withdrawing group, whereby in the case of L 1 ═NR 1 R 2 R 3+ , each of R 1 , R 2 , R 3 may be selected from C1-C6 alkyl or C5 or C6 aryl, L is C 1 -C 4 -alkyl, 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, n is 0, or 1, or 2, or 3, m is 0 or 1 with the proviso that at most one of Z 1 to Z 6 is N + and that in case that Z 1 is N + , L 2 may additionally be an ester, an amide, or a heterocycle, the optional linker B refers to one of the general formulas I, II, III or IV below where m and n are independently from each other 0, 1, 2, 3, 4, or 5, A refers to the headgroup A described above, and C refers to the polymer C, said polymer C being either of the general formula I or II wherein X is a group which can be chemically coupled to either A or the optional linker B, Y is a polymer, or an alkyl chain, Z is a functional group suitable for coupling to a terminus D, and the optional terminus D is either an inert group or a reactive group, and the optional crosslinker R is any molecule capable of crosslinking, and wherein in the headgroup A, L 1 bound to Z 6 is NR 1 R 2 R 3+ , or NO 2 , or F or C x F y , whereby in the case of L 1 ═NR 1 R 2 R 3+ , each of R 1 , R 2 , R 3 may independently from each other be selected from C 1 -C 6 alkyl or C 5 or C 6 aryl.