Hysteretic Swelling/Deswelling of Polyelectrolyte Brushes and Bilayer Films in Response to Changes in pH and Salt Concentration

Nisha Hollingsworth; Ronald G Larson

doi:10.3390/polym13050812

Hysteretic Swelling/Deswelling of Polyelectrolyte Brushes and Bilayer Films in Response to Changes in pH and Salt Concentration

Polymers (Basel). 2021 Mar 6;13(5):812. doi: 10.3390/polym13050812.

Authors

Nisha Hollingsworth¹, Ronald G Larson^{1

2

3}

Affiliations

¹ Department of Macromolecular Science & Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
² Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
³ Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA.

Abstract

Abstract We use a quartz crystal microbalance with dissipation (QCM-D) to investigate the swelling/de-swelling and hysteresis in brushes of weakly ionizable polyanion poly(acrylic acid) (PAA) brushes and bilayers containing a PAA brush and a poly(ethylene imine) (PEI) overlayer [...].

Grants and funding

1707640/National Science Foundation