Abstract
Pristine waterborne polyurethane-acrylate [pristine WPUA, soft-segment content: 64 wt%, dimethylol propionic acid (DMPA): 20 mol%/4.95 wt%] emulsions were synthesized using an acetone process from 4,4'-dicyclohexymethane diisocyanate (H12MDI)/Poly(tetramethylene oxide glycol) (PTMG,2900 g/mol)/DMPA/2-hydroxyehthyl metacrylate (HEMA) without an external emulsifier. A series of waterborne fluorinated polyurethane-acrylate hybrid [WFPUA: WFPUA10, WFPUA20 WFPUA 30 and WFPUA 40, where the numbers indicate the total content of acrylic monomers] emulsions as antifouling coating materials were synthesized from vinyl group-terminated urethane prepolymer (pristine WPUA components)/[isobornyl acrylate (IBOA)/n-butyl acrylate (BA)/perfluorodecyl acrylate (PFA) (IBOA/BA/PFA: 4/3/3 wt ratio)] by radical polymerization using an emulsifier-free/solvent-free method. The as-polymerized hybrid emulsion containing 50 wt% of acrylic monomer content was found to be unstable, indicating that near 50 wt% of a
| Original language | English |
|---|---|
| Journal | Polymer |
| State | Published - 2013 |