NDLI: Synthesis and characterization of latex nanoparticles using a visible-light photoinitiating system in reverse micelles

Content Provider	Springer Nature Link
Author	Arbeloa, Ernesto Maximilia Porcal, Gabriela Valeria Bertolotti, Sonia Graciela Previtali, Carlos Mario
Copyright Year	2014
Abstract	This work shows the feasibility of using the photoinitiating system composed by the xanthene dye Eosin-Y and triethanolamine on the polymerization of acrylamide in benzyl-hexadecyl-dimethylammonium chloride (BHDC) reverse micelles. Molecular weights of polyacrylamide (MWPAA) in the order of 105 and conversions up to 90 % are obtained. The size of the latex particles is in the range of the nanometers (d < 50 nm). The effect of water content and concentrations of surfactant, amine, dye, and monomer on the particle size and MWPAA are examined. Only the amine and monomer concentrations affect the MWPAA. These results are interpreted on the basis of an exchange mechanism between micelles. Practically no effect on hydrodynamic diameters is observed when the value of MWPAA is doubled. This is ascribed to a supercoiled structure of PAA inside of micelles. Our results also suggest that the polymer properties can be modulated by appropriate combination of the dye/surfactant electrical charges.
Starting Page	625
Ending Page	632
Page Count	8
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	293
Issue Number	2
e-ISSN	14351536
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-11-21
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dyes/pigments Dynamic light scattering Nanoparticles Photopolymerization Reverse micelles Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry Food Science Nanotechnology and Microengineering
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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