Preparation Mechanism of Electrostatic Self-Assembled Polyelectrolyte Film Using Quartz Crystal Microbalance

Abstract:

Electrostatic layer-by-layer (LbL) self-assembly is widely used in sequential adsorption of nanometer-thick monolayers of oppositely charged polyelectrolytes to form a multi-layer film with molecular-level control over the architecture. To offer functional material for the potential application, this paper exploits PDDA and PSS as polycation and polyanion for LbL self-assembly to fabricate polyelectrolyte nanocomposite films. The preparation and film-growing mechanism is investigated under the influences of multi-factor such as polyelectrolyte concentration, ionic strength, and assembling duration using quartz crystal microbalance (QCM). The research results indicate the formation mechanism of multi-layer PDDA/PSS films and offer fundamental basis for the optimum preparation of polyelectrolyte films.

• Periodical: Advanced Materials Research (Volume 499)
• Pages: 63-66
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.499.63
• Online since: April 2012
• Authors: Ning Mei Hao, Dong Zhi Zhang, Bo Kai Xia, Kai Wang, Chun Yue Wan
• Keywords: Assembling Duration, Ionic Strength, Layer-by-Layer Self-Assembly, Multi-Layer Film, Preparation Mechanism, Quartz Crystal Microbalance (QCM)

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