Ayse Asatekin Alexiou,Samuel Thomas,Papatya Kaner,Xiaoran Hu
申请号：
US15578801
公开号：
US10603637B2
申请日:
2016.06.01
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A two-layer photo-responsive membrane including a polymer layer and a support layer, the polymer layer being disposed on a surface of the support layer. The polymer layer is formed of a graft copolymer that contains a hydrophobic backbone and multiple side chains, the side chains each consisting of repeat units that switch between a hydrophobic form and a hydrophilic form upon exposure to a light of a specific wavelength. The polymer layer has a molecular weight cut-off of 3,000 to 250,000 Daltons and a thickness of 50 nm to 10 μm； and the support layer has a molecular weight cut-off of 50 to 250,000 Daltons. Also disclosed is a method of preparing this two-layer photo-responsive membrane.
