VOC-free Synthesis of Waterborne Poly(hydroxy urethane)-(meth)Acrylics Hybrids by Miniemulsion Polymerization
ASUA, José
Departamento de Ciencia y Tecnologıa de Polımeros e Instituto de Materiales Polimericos [POLYMAT]
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Departamento de Ciencia y Tecnologıa de Polımeros e Instituto de Materiales Polimericos [POLYMAT]
Language
en
Article de revue
This item was published in
ACS Applied Polymer Materials. 2020
American Chemical Society
Date
2020English Abstract
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 ...Read more >
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.Read less <
English Keywords
NIPUs
Coatings
Miniemulsion
PU-Acrylic Hybrid
Bio-based Polymers
Poly(Hydroxy)urethanes - PHUs
Origin
Hal imported