Novel waterborne UV-curable coatings based on hyperbranched polymers via electrophoretic deposition.

ABSTRACT: Two modified types of hyperbranched polymer were successfully prepared using hyperbranched polyether (HBPE) as a matrix, cis-5-norbornene-endo-2,3-dicarboxylic anhydride (CDA) or o-phthalic anhydride (PA) as a modifier and by grafting an NCO-terminated compound (IPDI-HEA). The modified hyperbranched polymers were incorporated into a typical water-soluble polyacrylate (WPA) as crosslinkers to develop high-performance waterborne UV-curable coatings via electrophoretic deposition (EPD). Although the particle size of the electrophoretic dispersion increased from 43.8 nm to 164 nm, no microphase separation occurred, and the smooth SEM images of the coatings confirmed their uniformity. The rate of photopolymerization (R _p) and percentage conversion o

SUBMITTER: Chen J 

PROVIDER: S-EPMC9063031 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature