Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/43694
Title: Poly(hexyl methacrylate) nanoparticles templating in nanoemulsions-made by phase inversion temperature
Author: Alvarado, A.G.
Nolla, J.
Rabelero, M.
Perez-Carrillo, L.A.
Arellano, M.
Mendizábal, E. M.
Solans, C.
Puig, J.E.
Issue Date: 2013
Abstract: Nanoemulsions of water, Brij 56 and hexyl methacrylate (with a small amount of squalene as hydrophobe or costabilizer) were made by the phase inversion temperature (PIT) method and then polymerized. In the absence of squalene, the nanoemulsions destabilized within minutes; however with squalene, the nanoemulsions were kinetically stable for at least several hours, which is long enough to carry out the reactions, with diameters of narrow size distribution in the range from 32 to 44 nm, depending on the surfactant concentration. Polymerizations, carried out a 20°C using a par redox, were extremely fast (ca. 100% conversion in less than 5 min) yielding polymer particles of ca. 40 nm, which were similar to the original nanoemulsion droplets (ca. 35 nm), indicating that the nanoemulsion droplets act as templates, and that squalene diminishes substantially monomer diffusion between reacting and nonreacting monomer droplets. Molar masses were high and alike to those produced by microemulsion polymerization of this monomer, suggesting that chain transfer to monomer is the main termination mechanism. Copyright © Taylor & Francis Group, LLC.
URI: http://www.scopus.com/inward/record.url?eid=2-s2.0-84876405823&partnerID=40&md5=e311d150ab6a8a51e41d414d0850d6eb
http://hdl.handle.net/20.500.12104/43694
Appears in Collections:Producción científica UdeG

Files in This Item:
There are no files associated with this item.


Items in RIUdeG are protected by copyright, with all rights reserved, unless otherwise indicated.