Wetting of Fluorinated Solids by Hydrogen-Bonding Liquids

Partially Fluorinated Esters and Ethers as Temperature Stable Liquids. Part I. Synthesis and Characterization

“…Surface chemical studies (20) revealed that alkanes and esters wetted surfaces comprising oriented close-packed CF 3 &roups in accordance with the values expected from their surface tensions. Liquid acids, alcohols,anci amines, however, had an abnormally greater tendency to wet such surfaces.…”

“…This new series of alkanols is reported to be atable as well as substantially nonflammable and noncorrosive (18). Studies at this laboratory have established that the CHF 2 group is comparable ir surface chemical inertness to the CF 3 group (20). Preliminary studies indicate that these alkanols are nontoxic oir of a low order of toxicity (21).…”

Surface Chemistry of Fluorochemicals

“…This argument led Zisman and co-workers (2)(3)(4)(5) to investigate the wettability properties of a condensed monolayer of each of the perfluoro fatty acids as soon as it became available by the Simons electrochemical process (6). Acids prepared by the telomerization method (7,8) were also studied; these have a terminal -CF 2 H group.…”

“…Monolayers adsorbed from nonaqueous solutions or from the melt have been widely investigated (1,31), especially the families of fatty acids, alcohols, primary amines, and amides. Many classes of halogenated organic compounds were studies, including the perfluoroalkanoic acids (3,27,28,32,33), the telomer acids, HF 2 C(CF2)xCOOH (4,27,28,32,33), perchloropentadienoic acid (27,28,34), -trifluorostearic acid and -trifluorostearyl amine (27,28,33,35), the progressively fluorinated alkanoic acids (21,22), the dirner and trimer acids (27,28) of the series Cl(CF 2 CFCl)xCF 2 "COOH, and a miscellany of other halogenated acids (27,28) containing F, Cl, or Br.…”

On the surface properties of waterborne fluorinated coating polymers

“…Different polymer surfaces were prepared from these two solid materials obtained from each latex: thin films were cast from CHCl 3 solutions, while rectangular plates a few mm thick were prepared by molding at T = 100 8C for 5 min, using either PTFM or PET as molding surfaces. Critical surface tensions c c were determined according to Zisman 28) , using either literature c l data (alkanes) 29) or the surface tensions c l measured at room temperature (23 8C) with a KSV Sigma70 tensiometer (Du Noüy ring method), which resulted in good agreement with the literature data at 20 8C.…”