caa a22 4500 475764528 CHVBK 20180406123601.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1007/s003960050529 doi (NATIONALLICENCE)springer-10.1007/s003960050529 Synchronous alternate multilayered adsorption of poly(4-vinyl- N - n -butylpyridinium) cations and poly(styrene sulfonate) anions on polystyrene colloidal spheres [Elektronische Daten] [T. Okubo, M. Suda] Alternate multiple adsorbed layers of up to six macrocations [poly(4-vinyl-N-n-butyl-pyridinium bromide)] and macroanions [sodium poly(styrene sulfonate)] are formed on monodispersed polystyrene colloidal spheres above the critical concentration of the macroions, m *. The m * value is the minimum number of macroions needed to reverse the sign of the ζ potential of the spheres in the first adsorption step. Alternate sign reversal in the ζ potential and expansive-contractive thickness changes are observed on the repeated and alternate addition of macrocations first and macroanions next. When the macroanions are added first, sign reversal in the ζ potential and reversible expansion and contraction do not occur. Breaking of the alternate multiple-type adsorption also occurs when equivalency in the number of dissociative groups of macrocations and macroanions is broken. Synchronous conformational changes of macrocations and macroanions in the multiple-adsorbed layers occurs only when the conformational rigidities with the multiple electrostatic and hydrophobic attraction and/or repulsion between macrocations and macroanions are delicately balanced. Springer-Verlag Berlin Heidelberg, 2000 Key words Synchronous adsorption nationallicence Multiple adsorption nationallicence Polystyrene spheres nationallicence Electrophoretic measurement nationallicence Dynamic light scattering nationallicence Okubo T. Department of Applied Chemistry Faculty of Engineering, Gifu University Yanagido 1-1, Gifu 501-1193, Japan e-mail: okubotsu@apchem.gifu-u.ac.jp Tel.: +81-58-2932620 Fax: +81-58-2932628, JP aut Suda M. Department of Applied Chemistry Faculty of Engineering, Gifu University Yanagido 1-1, Gifu 501-1193, Japan e-mail: okubotsu@apchem.gifu-u.ac.jp Tel.: +81-58-2932620 Fax: +81-58-2932628, JP aut https://doi.org/10.1007/s003960050529 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960050529 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Okubo T. Department of Applied Chemistry Faculty of Engineering, Gifu University Yanagido 1-1, Gifu 501-1193, Japan e-mail: okubotsu@apchem.gifu-u.ac.jp Tel.: +81-58-2932620 Fax: +81-58-2932628, JP aut NATIONALLICENCE 700 1- Suda M. Department of Applied Chemistry Faculty of Engineering, Gifu University Yanagido 1-1, Gifu 501-1193, Japan e-mail: okubotsu@apchem.gifu-u.ac.jp Tel.: +81-58-2932620 Fax: +81-58-2932628, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer