Highly hydrophilic and highly oleophobic membrane for oil-water separation
1 Assignment
0 Petitions
Accused Products
Abstract
A polymeric membrane for separating oil from water has a pore size of 0.005 μm to 5 μm, a thickness of 50 μm to 1,000 μm, a water contact angle of 0° to 60°, an oil contact angle of 40° to 100°. The membrane contains a hydrophobic matrix polymer and a functional polymer that contains a hydrophobic backbone and side chains. The side chains each have an oleophobic terminal segment and a hydrophilic internal segment. The weight ratio of the matrix polymer to the functional polymer is 99:1 to 1:9. Also disclosed is a method of making the above described membrane.
14 Citations
20 Claims
- 1. A polymer of the following formula:
-
4. A polymeric membrane for separating oil from water, the polymer membrane comprising:
-
a matrix polymer that is hydrophobic, and a functional polymer that contains a hydrophobic backbone and side chains, the side chains each having an oleophobic terminal segment and a hydrophilic internal segment, the functional polymer being of the following formula; - View Dependent Claims (5, 6, 7, 8, 9, 19, 20)
-
Specification