Copolymerization of 2-methoxy-4-vinylphenol with fluorinated acrylic monomers: Water-repellent properties of copolymer
✍ Scribed by K. Ito; K. Kodaira; Y. Ōnishi
- Book ID
- 101584549
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 324 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
Synopsis
T o prepare the copolymer, which is water and oil repellent and contains the hydroxyl group, 2methoxy-4-vinylphenol (VG: M1) is copolymerized with the fluorinated acrylic monomer ( M d .
The copolymerizability of VG (vinyl guaiacol) with pentadecafluoroctylacrylate (PDFOA) is best ( r l = 0.217, r2 = 0.0751). The critical surface tension yc of the copolymer of F1 = 0.451 (F1 is the ratio of M I units in the copolymer) is estimated to be 13.5 dyne/cm which is close to that of the homopolymer (F1 = 0). The yc of the other copolymers are so small that they are 18.5 dyne/cm for copoly(VG-trifluoroethylmethacrylate) of F 1 = 0.491 and 17.8 dyne/cm for copoly(VG-fluoropentylmethacrylate) of F1 = 0.392. Thus, these copolymers are water and oil repellent. Further, because of the hydroxyl, they provide hydrogen bonding to hydroxyapatite of teeth.