Walter J. Dressick,Kathryn J. Wahl,Dmitri Y. Petrovykh,Nabil D. Bassim,Rhonda Michelle Stroud
申请号：
US14147098
公开号：
US09896593B2
申请日:
2014.01.03
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A method, and an article made therefrom, of: contacting a substrate with a first solution of first polyelectrolyte chains to form a layer of the first polyelectrolyte on the substrate and contacting the layer of the first polyelectrolyte with a second solution of second polyelectrolyte chains to form a layer of the second polyelectrolyte. The first polyelectrolyte has a polyanion or polycation chain. The second polyelectrolyte has a polyanion or polycation chain of a charge opposite to that of the first polyelectrolyte. The first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte chains in the aggregate-forming solution. The ionic species forms, via bridging interactions, aggregates of the polyelectrolyte chains that remain intact in the aggregate-forming solution during the contact.
