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Article Dans Une Revue ACS Applied Polymer Materials Année : 2020

VOC-free Synthesis of Waterborne Poly(hydroxy urethane)-(meth)Acrylics Hybrids by Miniemulsion Polymerization

Résumé

A VOC-free method for the synthesis of Poly(hydroxyurethane)-(meth)acrylic waterborne hybrid dispersions was developed. Poly(hydroxyurethane)s (PHU) synthesized by bulk aminolysis of cyclic-carbonate derivatives using bio-sourced vegetable oil-based diamines was dissolved in (meth)acrylate monomers, the solution dispersed in water and polymerized in miniemulsion. Hybrid particles exhibiting core-shell morphology with the PHU in the shell were obtained. The performance of the 2 coating cast from these dispersions was studied, finding that by simply varying the PHU content and the casting conditions, widely different mechanical properties of PHU-(meth)acrylic hybrids could be obtained. The versatility of the synthetic method that is not limited to the type of (meth)acrylic monomers, opens the way for obtaining a broad range of environmentally friendly VOC and isocyanate free waterborne urethane-acrylic coatings and adhesives.
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Dates et versions

hal-02920358 , version 1 (24-08-2020)

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Citer

Boris Bizet, Etienne Grau, Henri Cramail, José Maria Asua. VOC-free Synthesis of Waterborne Poly(hydroxy urethane)-(meth)Acrylics Hybrids by Miniemulsion Polymerization. ACS Applied Polymer Materials, In press, ⟨10.1021/acsapm.0c00657⟩. ⟨hal-02920358⟩

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