Title :
Polyelectrolytes multilayers membranes for different functionalities
Author :
Bragaru, A. ; Miu, M. ; Simion, M. ; Ignat, T. ; Kleps, I. ; Schiopu, V. ; Purica, M. ; Craciunoiu, F.
Author_Institution :
Nat. Inst. for R&D in Microtechnol. (IMT), Bucharest, Romania
Abstract :
The aim of this work is to prepare a multilayer polyelectrolyte film using layer-by-layer technique (LbL), by sequentially immersing of a Nafion 117 membrane in positively and then negatively charged polyelectrolyte solutions in a cyclic procedure, based on the electrostatic attraction between opposite charges polyelectrolytes. Poly (sodium styrene sulfonate) - PSS has been used as polyanionic solution and poly (diallyldimethylammonium chloride) - PDDA - as polycationic solution, respectively. The total film thickness can easily be adjusted by varying the ionic strength of the solution.
Keywords :
membranes; multilayers; polymer electrolytes; polymer films; Nafion 117 membrane; charged polyelectrolyte solutions; electrostatic attraction; film thickness; ionic strength; layer-layer technique; multilayer polyelectrolyte film; poly (diallyldimethylammonium chloride); poly (sodium styrene sulfonate); polyanionic solution; Biomembranes; Chemicals; Electrostatics; Fuel cells; Methanol; Nonhomogeneous media; Polymers; Protons; Thermal conductivity; Thin film sensors; layer-by-layer technique; multilayer polyelectrolyte film; polyelectrolytes;
Conference_Titel :
Semiconductor Conference, 2009. CAS 2009. International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4244-4413-7
DOI :
10.1109/SMICND.2009.5336584
