Long-Term Zero-Fouling Polymer Surfaces

摘要

The present invention relates to a method for producing non-fouling surfaces and products having such a surface. Especially, the present invention relates to a product comprising a bulk part and a surface region; wherein a first surface region coating is coated on at least a first part of said surface region; said first surface region coating comprising a polyionic co-polymer consisting of a polyionic backbone polymer and non-ionic hydrophilic side chain polymers; wherein the molecular spacing parameter, L/2Rg, of said first surface region coating is less than 0.26.

主权项

1. A method for modifying a surface characteristic of a product comprising:
a) Providing a product comprising a bulk part and a surface region, said surface region being positively or negatively charged; b) Contacting at least a portion of the surface region with an aqueous coating composition having a temperature of at least 60 degrees Celsius to form a first surface region coating on at least a first part of said surface region; wherein the aqueous coating composition comprises a polyionic co-polymer consisting of a polyionic backbone polymer and non-ionic hydrophilic side chain polymers; wherein the liquid matter of the aqueous coating composition comprises at least 50% w/w of water; provided that when the surface region is positively charged, said polyionic backbone polymer being negatively charged; provided that when the surface region is negatively charged, said polyionic backbone polymer being positively charged; wherein said polyionic co-polymer has a cloud point above the temperature of said coating composition when brought into contact with said at surface region under step b).