| 摘要 |
A seawater-insoluble polymer comprising quaternary ammonium and/or quaternary phosphonium groups of formula (I) is disclosed wherein: Y is O or NH, Z is N or P, R1 is a hydrogen atom or a C1-C4 alkyl group, R2 is a C2 or a C3-C12 divalent hydrocarbon group, R3 and R4 independently represent a C1-C6 alkyl group or an optionally substituted phenyl group R5 is a C1-C5 alkyl group; wherein the said quaternary ammonium groups and/or phosphonium groups being bound to the backbone of the polymer; and wherein the quaternary ammonium groups and/or quaternary phosphonium groups being neutralised by counter-ions that consist of the anionic residue of an acid having an aliphatic, aromatic, or alkaryl hydrocarbon group comprising 6 or more carbon atoms, and wherein the counter-ions being capable of hydrolyzing, dissociating or exchanging with sea water species to leave a polymer framework that is soluble in sea water. Preparation of this polymer, its use in anti-fouling paint compositions, and anti-fouling coating compositions comprising the polymer are also disclosed. |
