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Polymers 2018, 10(1), 88; https://doi.org/10.3390/polym10010088

One-Pot Synthesis of Waterborne Polymeric Dispersions Stabilized with Alkali-Soluble Resins

1
POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastián, Spain
2
BASF SE, 67056 Ludwigshafen am Rhein, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Gregory T. Russell
Received: 11 December 2017 / Revised: 12 January 2018 / Accepted: 15 January 2018 / Published: 18 January 2018
(This article belongs to the Special Issue Emulsion Polymerization)
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Abstract

Alkali-soluble resins (ASRs) are a type of electrosteric emulsifiers of high interest because they can profitably improve the features of waterborne dispersions. In this work, they have been synthesized in-situ through a one-pot approach and they have been used as polymeric surfactants for a second emulsion polymerization step in the same reactor. This strategy provides some advantages compared to other polymerization techniques, like the intensification of the process and the absence of organic solvents. Their use can also further reduce the environmental impact of formulations for film-forming applications, since grafting reactions with the particles have been observed and quantified in relation with the synthetic parameters. These chemical linkages with the particles may reduce the leaching and the release of surfactants from polymeric films, for example in water-based coatings or adhesives. The systems have been also studied from the kinetics point of view, finding relevant differences with other electrosterically stabilized processes from the literature, as well as concerns the nucleation mechanism. View Full-Text
Keywords: emulsion polymerization; electrosteric stabilizer; alkali-soluble resin; grafting; coating emulsion polymerization; electrosteric stabilizer; alkali-soluble resin; grafting; coating
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Bandiera, M.; Balk, R.; Barandiaran, M.J. One-Pot Synthesis of Waterborne Polymeric Dispersions Stabilized with Alkali-Soluble Resins. Polymers 2018, 10, 88.

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