Preparation and application of microparticles prepared via the primary amine-catalyzed michael addition of a trithiol to a triacrylate

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We report a novel approach to prepare microparticles via a dispersion polymerization using the amine-catalyzed addition of a trithiol to a triacrylate. Microparticles loaded with various core materials were produced and applied in various systems to improve the desired characteristics of the given system. We determined that this type of microparticle could be used as either a stimulated release or controlled release system for certain desired core materials. These microparticles were able to prevent the interaction between a Lewis acid initiator and fumed silica, improving the rheological properties of an epoxy system containing the initiator. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 Microparticles containing various core materials were prepared via the octyl amine catalyzed Michael addition of trimethylolpropane tris(3-mercaptopropionate) to trimethylolpropane triacrylate. A borontrichloride-amine complex initiator was successfully encapsualted in a thiol-acrylate matrix. The addition of these BCl 3-amine microparticles to a multifunctional epoxy resin, trimethylolpropane triglycidyl ether or bisphenol A diglycidyl ether, yeilded epoxy systems in which the rheological properties were improved while the strength of the resulting polymer products were retained. Copyright © 2011 Wiley Periodicals, Inc.

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Journal of Polymer Science, Part A: Polymer Chemistry

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