METHOD FOR OBTAINING TEMPERATURE SENSITIVE POLYMERIC COATING ON METAL SURFACE Russian patent published in 2010 - IPC C23C22/00 B05D7/14 

FIELD: metallurgy.

SUBSTANCE: invention refers to the method for obtaining polymeric coating on metal surface, for example aluminium, which is capable at temperature variation within small range of reversible changing lyophilic and sorption properties which can be used for regulation of hydrodynamics and in biotechnology for extraction of bioorganisms from fabric substrate. Method involves obtaining thermal sensitive polymeric coating on metal surface by means of its modification; at that, the metal surface is pre-treated with 1n water solution of monochloracetic acid, or 0.5n solution of 3-chloromethylbenzoic acid in methanol, and modification is performed in two stages; at that, first in the solution containing hydrophilic or hydrophobic monomer, by means of its graft polymerisation on surface in presence of catalytic complex consisting of metal halide of alternating basicity and organic ligand, during 3-6 h at 50-60°C, and then in water solution containing N-isopropylacrylamide by means of its graft block-copolymerisation on the surface in presence of catalytic complex consisting of metal halide of alternating basicity and organic ligand, during 3-5 h at 70°C.

EFFECT: obtaining polymeric coating on metal surface, which is capable at temperature variation within small range of reversible changing lyophilic and sorption properties.

3 cl, 2 tbl, 5 dwg, 15 ex