Creating microstructures using conducting polypyrrole

Voltammetry method by varying voltage, cycle times, surfaces

Bachelor Thesis , 2010 , 29 Pages , Grade: 70

Engineering - Chemical Engineering

Simple electrochemical aided polymerization was done using pyrrole and beta-napthalenesulfonic acid as electrolyte cum anionic surfactant to attempt creating microstructures on sputtered gold surface, highly oriented pyrolitic graphite, and thiol-modified gold surface. Hydrogen bubble template was used on gold, but results showed doubted polymerisation around this. Instead, one tenth structure size of hydrogen bubbles was commonly observed in two different electrolyte concentrations. No interesting
microstructure was formed on highly oriented pyrolitic graphite. This was due to polarisation of large size graphite. Irregular microcapsules were formed around n-decane template on thiol-coated gold, but other structures also appeared. Lack of control on many variables due to limitation of equipments and materials lead to inaccuracy and inability to do more detailed observation. However, some results showed research aim was achieved

Table of Contents

1. Abstract

2. Introduction

3. Literature Review

4. Experimental Section
4.1. Methods
4.2. Set-up
4.3. Conditions
4.4. Materials
4.5. Schematic diagram

5. Results and Discussion
5.1. Gold surface stability
5.2. Electropolymerisation of pyrrole around hydrogen bubble template on bare gold surface
5.3. Surface hydrophobicity
5.4. Electropolymerisation of pyrrole around n-decane droplet template on highly oriented pyrolitic graphite
5.5. Electropolymerisation of pyrrole around n-decane droplet template on thiol-coated gold

6. Conclusion

7. References

• College: University of Melbourne
• Grade: 70
• Author: Albert Johan (Author)
• Publication Year: 2010
• Pages: 29
• Catalog Number: V506250
• ISBN (eBook): 9783346068415
• ISBN (Book): 9783346068422
• Language: English
• Tags: Microstructure, Pyrrole, Polymer, Polypyrrole, Microstructures, Conducting, Conducting microstructures, Voltamettry, Beta-NSA, graphite, Hopg, Highly oriented pyrolitic graphite, Thiol, Thiol coat, Gold, Thiol-coated gold, Polymerization, Hydrogen bubbles, N-decane, sputtered, Sputtered gold, Electrolyte, polymerisation, chemical engineering, Surface tension, bubble, Electrochemistry, drug, Drugs, Drug delivery, Surfactant, Anionic surfactant, Bubbles, Capsule, Bubble template, Microcapsule, Microcapsules, beta-napthalenesulfonic acid, Pharmacy, Pharmaceutical