Thin Multilayer Films of Weak Polyelectrolytes on Colloid Particles

Title data

Kato, Noritaka ; Schuetz, Peter ; Fery, Andreas ; Caruso, Frank:
Thin Multilayer Films of Weak Polyelectrolytes on Colloid Particles.
In: Macromolecules. Vol. 35 (2002) Issue 26 . - pp. 9780-9787.
ISSN 1520-5835
DOI: https://doi.org/10.1021/ma0209388

Official URL:

Abstract in another language

We report the formation of poly(acrylic acid) (sodium salt) (PAA) and poly(allylamine hydrochloride) (PAH) multilayers on polystyrene (PS) and melamine formaldehyde (MF) colloid particles by the layer-by-layer (LbL) assembly technique. The use of different solution processing conditions (e.g., pH and ionic strength) was found to have a pronounced effect on film growth, with the degree of dissociation of both polyelectrolytes (PEs) playing an important role for regular PAA/PAH multilayer growth. To retain colloidal stability during the sequential adsorption of PEs, it was essential to deposit the PE layers from adsorption solutions where the PEs are in a highly charged state, the degree of which was regulated by varying the pH. Thicker PAA/PAH coatings were obtained when the pH value of the PAA deposition solution was close to the pKa value of PAA in solution. The presence of salt in the deposition and rinsing solutions also promoted the formation of thicker PAA/PAH coatings. The

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Physical Chemistry II - Univ.-Prof. Dr. Andreas Fery Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT:	No
DDC Subjects:	500 Science > 500 Natural sciences 500 Science > 530 Physics 500 Science > 540 Chemistry
Date Deposited:	09 Dec 2014 08:27
Last Modified:	28 Jul 2023 09:17
URI:	https://eref.uni-bayreuth.de/id/eprint/4055