Photo-initiated miniemulsion polymerization as a route to the synthesis of gold nanoparticle encapsulated latexes

Fuchs, Adrian V. and Will, Geoffrey D. (2010) Photo-initiated miniemulsion polymerization as a route to the synthesis of gold nanoparticle encapsulated latexes. Polymer, 51 10: 2119-2124. doi:10.1016/j.polymer.2010.03.019


Author Fuchs, Adrian V.
Will, Geoffrey D.
Title Photo-initiated miniemulsion polymerization as a route to the synthesis of gold nanoparticle encapsulated latexes
Journal name Polymer   Check publisher's open access policy
ISSN 0032-3861
1873-2291
Publication date 2010-05-04
Sub-type Article (original research)
DOI 10.1016/j.polymer.2010.03.019
Volume 51
Issue 10
Start page 2119
End page 2124
Total pages 6
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Formatted abstract
We report the first use of photo-initiated miniemulsion polymerization for the synthesis of well defined poly(methyl methacrylate) (PMMA) latexes. Furthermore, the application of photo-initiation is employed to the incorporation of decanethiol-capped gold nanoparticles (AuNPs). The procedure provides a low temperature polymerization for an oil-in-water miniemulsion with temperatures not exceeding 40°C and polymerization times of only one hour. Using these mild reaction conditions allows the use of miniemulsion polymerization for the encapsulation of temperature sensitive species within the latex. Furthermore, we demonstrate the applicability of this method for the incorporation of decanethiolcapped AuNPs. Particle size distribution and morphology was studied using dynamic light scattering (DLS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). PMMA latexes ranged between 100 and 200 nm in diameter showing good particle size distribution and tendencies to form semi-ordered domains. We show that variations in surfactant, hydrophobe and initiator concentrations behave in the same manner as miniemulsions initiated through conventional thermal methods. TEM observations revealed that the latexes with encapsulated AuNPs displayed even distributions of AuNPs throughout the PMMA latex with no aggregation witnessed.
Keyword Miniemulsion
Photo-initiated
Gold nanoparticles
Inorganic particles
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Thu, 14 Nov 2013, 07:53:50 EST by Adrian Fuchs on behalf of Aust Institute for Bioengineering & Nanotechnology