Paint the Town Red Incorporation of Direct Red 80 into Self-Assembled and Spin-Assembled Polyelectrolyte Multilayers

Date of Award

2003

Document Type

Thesis

Degree Name

Bachelors

Department

Natural Sciences

First Advisor

Johal, Malkait

Keywords

Polyelectrolyte, Direct Red 80/Multilayers, Polymers, Azobenzene

Area of Concentration

Chemistry

Abstract

The focus of this thesis is to investigate the sequential adsorption of charge alternating polymer and dye layers onto a solid support. In addition to investigating adsorption of an anionic dye onto a polycationic surface, competitive adsorption of the dye and an anionic polyelectrolyte onto a polycationic surface is also studied. Adsorption kinetics of each species and the composition of the mixed film is investigated. The layers are constructed using both layer-by-layer self-assembly and spin-assembly. The two deposition techniques differ in substrate-solution contact time, with the latter technique resulting in films far from thermodynamic equilibrium. T'he multilayers are characterized using UV-visible spectrophotometry, ellipsometry, and atomic force microscopy. It was found that it is possible to spin-assemble small monomeric molecules onto a cationic polyelectrolyte. It was found that coadsorption of two anionic species on the cationic surface occurs using both assembly methods.

Rights

This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.

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