Aimed at making high-performance coatings,the UV-crosslinking behavior of bisphenol A-type poly(ether ether ketone) were studied. A homogeneous aqueous dispersion of this soluble poly(ether ether ketone) was successfully obtained through polymer emulsion formation and then the solvent evaporation. The uniform particles(～150 nm) could be formed when mass fraction of the polymer in chloroform was ranged from 3% to 25%. The coating could be prepared via spray-coating method from above concentrated aqueous dispersion and some processing aids. We found the UV crosslinked layers had better hardness,adhesions and solvent-resistance than the ones without UV irradiation.
A novel aromatic polyethersulfone bearing a(3-methoxy)phenyl group(PPES-OMe)was synthesized via an aromatic nucleophilic substitution reaction.A hydroxyl-containing polyethersulfone(PPES-OH)was successfully obtained via a demethylation reaction of PPES-OMe.A series of nano-hybrid materials could be prepared with sol-gel method and FTIR results suggested the chemical bond formed between the hydroxyl group of PPES-OH and TEOS.Nano-size SiO2 particles were observed to disperse uniformly in the polyethersulfone matrix by SEM.It was found that all the films based on these materials were flexible.
