Water vapour transmission in butadiene-MMA-methacrylic acid latex films

Aungsupravate, Ornsiri., Lucas, David., Abu Hassan, Noorman, Tonge, Matthew. T., Warrender, Garry, Castignolles, Patrice., Gaborieau, Marianne. and Gilbert, Robert. G. (2008) Water vapour transmission in butadiene-MMA-methacrylic acid latex films. European Polymer Journal, 44 2: 342-356. doi:10.1016/j.eurpolymj.2007.11.009


Author Aungsupravate, Ornsiri.
Lucas, David.
Abu Hassan, Noorman
Tonge, Matthew. T.
Warrender, Garry
Castignolles, Patrice.
Gaborieau, Marianne.
Gilbert, Robert. G.
Title Water vapour transmission in butadiene-MMA-methacrylic acid latex films
Journal name European Polymer Journal   Check publisher's open access policy
ISSN 0014-3057
Publication date 2008-02-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.eurpolymj.2007.11.009
Open Access Status
Volume 44
Issue 2
Start page 342
End page 356
Total pages 15
Editor Haddleton, D.M.
Place of publication United Kingdom
Publisher Elsevier
Language eng
Subject 860199 Processed Food Products and Beverages (excl. Dairy Products) not elsewhere classified
030399 Macromolecular and Materials Chemistry not elsewhere classified
CX
Abstract Batch emulsion copolymerizations of butadiene, methyl methacrylate (MMA), methacrylic acid (MAA) and hydroxyethyl methacrylate were performed in RCle reactor, and the product vulcanized to form a film typical of those used for barrier products (gloves and condoms). The water vapour transmission (WVT) or breathability and physical properties (such as tensile strength and elongation at break) of the films were measured. Factorial design was used to vary the concentration of monomers in the copolymerizations. Methacrylic acid is a hydrophilic monomer and its distribution in or on the particles would be expected to affect WVT. Characterization by ultracentrifugation, nuclear magnetic resonance and infrared spectroscopy showed that most of the methacrylic acid units were buried inside the particles. This appears to be responsible for a relatively low WVT rate, probably due to the absence of hydrophilic (MAA-rich) domains inside the film. When centrifuged, the latex shows two particle-containing layers; characterization of the latex revealed the presence of MMA-rich domains in one layer, probably arising from secondary particle formation late in the polymerization. The butadiene-to-MMA ratio probably dominates tensile strength through vulcanization with sulfur. The elongation at break was independent of both the butadiene-to-MMA ratio and the MAA concentration over the range studied (ascribed to competing effects), but dependent upon the total crosslinker concentration. (c) 2007 Elsevier Ltd. All rights reserved.
Keyword Polymer Science
Polymer Science
POLYMER SCIENCE
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Centre for Nutrition and Food Sciences Publications
 
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Created: Wed, 15 Apr 2009, 01:47:59 EST by Emma Cushworth on behalf of School of Land, Crop and Food Sciences