Synthesis and characterization of ricinoleic acid derived monomer and its application in aqueous emulsion and paints thereof
ISSN: 0369-9420
Article publication date: 9 January 2019
Issue publication date: 29 January 2019
Abstract
Purpose
This paper aims to prepare acrylic functional ricinoleic acid monomer and incorporate it in conventional miniemulsion polymerization. Subsequently, paints were formulated to study the variation in final coating properties.
Design/methodology/approach
Synthesis process involved the esterification of ricinoleic acid with 2-hydroxy methyl methacrylate in the presence of FASCAT-4100 catalyst. The final product of the reaction, methacrylated ricinoleic acid (MRA), was confirmed using Fourier-transform infrared spectroscopy and 1H-nuclear magnetic resonance spectroscopy and determining acid and iodine value. Further, MRA was incorporated in various concentrations (1, 2 and 3 Wt.%) along with methyl acrylate and butyl acrylate in conventional miniemulsion polymerization and paints were formulated thereof.
Findings
It was observed that with the addition of MRA monomer, flexibility of emulsion films increased as indicated by glass transition temperature and elongation value (percentage). Moreover, with the addition of MRA monomer, improvement in mechanical and chemical properties of the coatings was observed.
Research limitations/implications
Even a low concentration MRA monomer (as low as 3 per cent) caused a significant reduction in the glass transition temperature of emulsion films. Thus, it can be efficiently used in applications such as adhesives and elastomeric coatings.
Originality/value
The acrylic functional monomer derived from ricinoleic acid is unique and not yet incorporated in miniemulsion polymerization. The synthesized monomer can be used in coatings where low Tg emulsions are required.
Keywords
Acknowledgements
The authors would like to thank S K oil International, Mumbai, India for providing ricinoleic acid. The authors are grateful to Evonik industries, Mumbai, for providing acrylate monomers. The authors express their heart-felt thanks to AICTE for funding the project.
Citation
Mhadeshwar, N., Wazarkar, K. and Sabnis, A.S. (2019), "Synthesis and characterization of ricinoleic acid derived monomer and its application in aqueous emulsion and paints thereof", Pigment & Resin Technology, Vol. 48 No. 1, pp. 65-72. https://doi.org/10.1108/PRT-09-2017-0078
Publisher
:Emerald Publishing Limited
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