Main Chain Effects in Tetraol-Functionalized Perfluoropolyethers
The interfacial properties of perfluoropolyether (PFPE) films having the [(CF2)nO] main chain with n = 1.5, 3 and 4, were systematically compared on carbon surfaces.The monolayer thickness decreases with increasing n, indicating CATS CLAW that stiffer chains (larger n) lie flatter on the surface.The surface energy-derived disjoining pressure also i