Airflow-field-induced sandwich-type membrane of block copolymer for selective ion separation.
A simple and effective airflow method to prepare sandwich-type block copolymer films is reported. The films are composed of three layers: vertically oriented nanocylinders align in both upper and bottom layers and irregular nanocylinders exist in the bulk of the film. The vertically oriented nanocylinders in both sides can provide high accessibility to ions and ensures the exchange of chemical species between the membrane and external environment, while the irregularly oriented nanocylinders in the middle part of the film can prolong the pathway of ions transportation and enhance ions selectivity.
['Shan|Feng|F|', 'Lu|Xuemin|X|', 'Guan|Junfang|J|', 'Lu|Qinghua|Q|', 'Feng|Xingliang|X|']
D007477:Ions D008422:Materials Testing D049329:Nanostructures D010316:Particle Size D011108:Polymers D011522:Protons D013499:Surface Properties D014639:Vanadium
block copolymer ions separation airflow field self-assembly