Acrylic-Alkyd Hybrids: Secondary Nucleation, Particle Morphology, and Limiting Conversions

Ravindra Udagama (1) , Carolina de Las Heras Alarcón (2) , Joseph Keddie (2) , John Tsavalas (3) , Elodie Bourgeat-Lami (1) , Timothy Mckenna (1)

1 C2P2 - Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265
2 Department of Physics, University of Surrey
3 UNH - University of New Hampshire

The chemical incorporation of an unsaturated alkyd into an acrylic polymer created via miniemulsion polymerisation was studied. The variation of the number ratio of polymer particles to initial droplets with conversion, and changes in individual monomer conversions with increasing alkyd levels were the main quantities used to study the effect of increasing alkyd quantity in the hybrid system. Homogeneous nucleation was more significant in systems rich in the more hydrophilic methyl methacrylate (MMA). Changes in particle morphology with monomer conversion, as well as limited monomer conversion were observed. The results emphasize the importance of proper pairing of the miscibility between the specific acrylics and alkyds used in these hybrid polymers.

Mots clés: alkyd; hydrophobe; limiting conversion; latex film formation; hybrid latex

Domaines: Polymères

Ravindra Udagama, Carolina de Las Heras Alarcón, Joseph Keddie, John Tsavalas, Elodie Bourgeat-Lami, et al.. Acrylic-Alkyd Hybrids: Secondary Nucleation, Particle Morphology, and Limiting Conversions. Macromolecular Reaction Engineering, 2014, 8 (9), pp.622 - 638. ⟨10.1002/mren.201400003⟩. ⟨hal-01859694⟩