Patent ID: 9346022
Filing Date: 2016-05-24
CPC Classification: B01D,C08F,C09D

Claim Text:
1. An antibiofouling membrane, being formed by a hydrophobic membrane which is a polytetrafluoroethylene (PTFE) membrane, a polyvinylidene fluoride (PVDF) membrane, or a polypropylene membrane and a copolymer coated stable on a surface of the hydrophobic membrane, wherein the copolymer which is selected from the group consisting of a diblock copolymer and a random copolymer, comprises at least one hydrophobic segment and at least one antibiofouling segment, the hydrophobic segment comprises a plurality of hydrophobic moieties which are derived from polystyrene (PS) having a molecular weight (Mw) between 3000 and 11000DA and, the antibiofouling segment comprises a plurality of antibiofouling moieties which are derived from polyethylene glycol methacrylate (PEGMA) having a molecular weight of 500DA, and the molar mass ratio of PS/PEGMA in the diblock copolymer being 1.5˜2.5, and a coating amount of the copolymer to the surface is 0.01˜1.2mg/cm 2 .