| abstract |
A polyalkanolamine comprising the structure of formula L1 n n [A L ] n [B L ] m (L1) n nwherein nA L nisn nB L nis n(a) -[O-X L21 ] o -, n(b)n nor n(c)n n nX L1 , X L2 , X L3 nare independently selected from a C 1 to C 6 alkanediyl; nAr L nis a 5 or 6 membered N-heteroaromatic ring system comprising from 1 to 4 N atoms, which may be unsubstituted or substituted by C 1 to C 6 alkyl; nn nis an integer of from 2 to 350; nm nis 0 or an integer of from 1 to 600; no nis 1 or an integer of from 2 to 25; nB L1 nis a continuation of the backbone B L by branching; nX L11 , X L12 , X L13 are nindependently selected from a C 1 to C 6 alkanediyl; nX L21 nis a C 1 to C 6 alkanediyl; nand derivatives thereof obtainable by N-protonation, N-quaternization, substitution, or polyalkoxylation. |