Document Detail


Silver nanoparticles coated with thioxanthone derivative as hybrid photoinitiating systems for free radical polymerization.
MedLine Citation:
PMID:  23231028     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A new type of photoinitiator for free radical polymerization was synthesized and characterized. 2-(11-Mercaptoundecyloxy)thioxanthone (1) was anchored at the surface of silver nanoparticles (NPs), and the interaction of plasmon field generated in the immediate vicinity of Ag NPs carrying the chromophores was evaluated. The optical features and structure of the silver-initiator nanoassemblies (Ag@1) were characterized by UV-vis and fluorescence spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). TEM and XRD studies revealed the presence of ca. 5-6 nm diameter Ag NPs, and XPS also confirmed the successful anchorage of 1 at their periphery. The nanoassemblies Ag@1 were successfully used as macroinitiator for radical polymerization of acrylate monomers, triggered photochemically, to obtain Ag(0)-polyacrylate nanocomposite materials. The nanocomposite materials synthesized with the use of Ag@1 exhibit attractive possibilities for patterning the surface of thin films.
Authors:
Emilie Nehlig; Raphaël Schneider; Loic Vidal; Gilles Clavier; Lavinia Balan
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Publication Detail:
Type:  Journal Article     Date:  2012-12-11
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  28     ISSN:  1520-5827     ISO Abbreviation:  Langmuir     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  17795-802     Citation Subset:  IM    
Affiliation:
Laboratoire Réactions et Génie des Procédés, Université de Lorraine , CNRS UPR 3349, 1 rue Grandville, 54001 Nancy, France.
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