Fluorinated phosphonic acid compounds, useful as treatments for substrate surfaces, have the formula (I) : wherein: R1 is a straight chain alkylene group having from 3 to 21 carbon atoms, an oxa-substituted straight chain alkylene group having from 2 to 20 carbon atoms, or a thia-substituted straight chain alkylene group having from 2 to 20 carbon atoms; R2 is a perfluoroalkyl group having from 4 to 10 carbon atoms; R3 is hydrogen, an alkali metal cation, or an alkyl group having from 1 to 6 carbon atoms; and M is hydrogen or an alkali metal cation, with the proviso that if R1 is an unsubstituted straight chain alkylene group, then the sum of carbon atoms in R1 and R2 combined is at least 10.
氟磷酸化合物,用作处理基板表面的药物,其
化学式为(I):其中:R1为具有3至21个碳原子的直链烷基基团,具有2至20个碳原子的氧代取代直链烷基基团,或具有2至20个碳原子的
硫代取代直链烷基基团;R2为具有4至10个碳原子的
全氟烷基基团;R3为氢、碱
金属阳离子,或具有1至6个碳原子的烷基基团;M为氢或碱
金属阳离子,但如果R1为未取代的直链烷基基团,则R1和R2中碳原子的总和至少为10。