Copolymerization of 2‐methoxy‐4‐vinylphenol with fluorinated acrylic monomers: Water‐repellent properties of copolymer

摘要

AbstractTo prepare the copolymer, which is water and oil repellent and contains the hydroxyl group, 2‐methoxy‐4‐vinylphenol (VG:M1) is copolymerized with the fluorinated acrylic monomer (M2). The copolymerizability of VG (vinyl guaiacol) with pentadecafluoroctylacrylate (PDFOA) is best (r1= 0.217,r2= 0.0751). The critical surface tension γCof the copolymer ofF1= 0.451 (F1is the ratio ofM1units in the copolymer) is estimated to be 13.5 dyne/cm which is close to that of the homopolymer (F1= 0). The γcof the other copolymers are so small that they are 18.5 dyne/cm for copoly(VG‐trifluoroethylmethacrylate) ofF1= 0.491 and 17.8 dyne/cm for copoly(VG‐fluoro‐pentylmethacrylate) ofF1= 0.392. Thus, these copolymers are water and oil repellent. Further, because of the hydroxyl, they provide hydrogen bonding to hydroxyapa