TY - JOUR
T1 - Study of Polyelectrolyte Adsorbent Theory on a Repulsive Charged Surface
AU - Lu , Meng-Chun
AU - Zheng , Yong-Lin
AU - Wang , Xiao-Xi
AU - Luo , Zheng-Hua
AU - Yan , Gang-Feng
AU - Tian , Xiao-Bin
JO - Journal of Atomic and Molecular Sciences
VL - 2
SP - 123
EP - 131
PY - 2014
DA - 2014/05
SN - 5
DO - http://doi.org/10.4208/jams.080513.111013a
UR - https://global-sci.org/intro/article_detail/jams/8315.html
KW - dielectric constant, polyelectrolyte, charged of surface, adsorbent theory.
AB - <p style="text-align: justify;">Applying scaling theory of polyelectrolyte adsorption, and according to ratio
of the dielectric constant between the medium and the substrate, and taking into
account strong interaction between polyelectrolytes of multivalency adsorption, we
proposed a scaling theory of the approximation method on a repulsive charged surface.
It is divided into two kind phase diagrams that one is qualitatively different.
This shows when the surface charge density is low (or the bulk counterion density
is high), the surface and the bulk counterion density are almost the same. Once the
surface charge density is high enough, counterions condense on the surface. In this
regime, polyelectrolytes of lower valency form a correlated many-chain state. As their
valency is high enough, the state turns out to be single-chain because of stronger repulsion
between neighboring chains.</p>