Charged polymer brushes offer enhanced properties compared to neutral brushes due to
the intra-and interchain interactions between charged monomers. These interactions can be
tuned through the charged monomer fraction and by modulating environmental conditions
such as solution pH and ionic strength. Here, we examine the effect of salt concentration and
identity on the conformational pH-response of weak polybasic brushes with various charged
monomer fractions using in-situ ellipsometry and streaming zeta potential. Our model system …