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Surfactant-free miniemulsion polymerization ofn-BA/S stabilized by NaMMT : films with improved water resistance

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Bonnefond, Audrey, Paulis, Maria, Bon, Stefan Antonius Franciscus and Leiza, José R. (2013) Surfactant-free miniemulsion polymerization ofn-BA/S stabilized by NaMMT : films with improved water resistance. Langmuir, Volume 29 (Number 7). pp. 2397-2405. doi:10.1021/la3047033 ISSN 0743-7463.

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Official URL: http://dx.doi.org/10.1021/la3047033

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Abstract

The use of sodium montmorillonite clay as a stabilizer in the surfactant-free emulsion polymerization of n-butyl acrylate/styrene (n-BA/S) was assessed. It was shown that the use of the clay alone did not yield the desired armored latex particles. A functional comonomer, that is, a phosphate ester of poly(ethylene glycol) monomethacrylate, was used to improve the interaction between the polymer and clay, thus allowing for the clay platelets to adhere to the surface of the polymer particles. The morphology of the films obtained for these two different scenarios was similar and resembled a honeycomb structure. However, their water-resistance properties differed drastically. The water absorption and water vapor permeation rate were much lower in the hybrid n-BA/S/clay films in the presence of the functional monomer than in the films obtained without the functional monomer.

Item Type: Journal Article
Divisions: Faculty of Science, Engineering and Medicine > Science > Chemistry
Journal or Publication Title: Langmuir
Publisher: American Chemical Society
ISSN: 0743-7463
Official Date: July 2013
Dates:
DateEvent
July 2013Published
Volume: Volume 29
Number: Number 7
Page Range: pp. 2397-2405
DOI: 10.1021/la3047033
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: European Union (EU) , Basque Government, UPV/EHU , Welcome Trust , National Program for the Promotion of Human Ressources within the National Plan of Scientific Research, Development and Innovation-Fondo Social Europeo, Gobierno Vasco and MCyT
Grant number: FP7-NMP-2009-SMALL-246434 (EU); GV-IT-303-10 (Basque Government); UFI 11/56 (UPV/EHU); 055663/Z/98/Z (Welcome Trust)

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