Surface treatment agents and polymers comprising substituted phenyl silanes and siloxanes

Abstract

The invention concerns new compounds for making a hydrophilic surface lipophilic. The compounds have the general formula ##STR1## wherein Z.sup.1 and Z.sup.2 are independently chlorine, fluorine, bromine, alkoxy with not more than 6 carbon atoms, NH, --NH.sub.2, --NH.sub.2 ', wherein R' is alkyl with 1 to 3 carbon atoms, --SH, --CN, --N.sub.3 or hydrogen, and R.sup.1 is ##STR2## wherein each of the S-substituents, S.sub.1, S.sub.2, S.sub.3, S.sub.4 and S.sub.5 are independently selected from the group consisting of hydrogen, alkyl with 1 to 4 carbon atoms, methoxy, ethoxy, and cyano, provided that at least one of the S-substituents is other than hydrogen and when there is a methyl or methoxy S-substituent then (i) at least two of the S-substituents are other than hydrogen, (ii) two adjacent S-substituents form with the phenyl nucleus a naphtalene or anthracene group, or three adjacent S-substituents form together with the phenyl nucleus a pyrene group, and X is the group --(CH.sub.2).sub.n --, wherein n is 0 to 20, preferably 10 to 16, or the group ##STR3## wherein i is 0 to 10 and k is 1 to 5, whereby, when n is not 0, i.e. X is a spacer group, the S-substituents, especially S.sub.3, can also be phenoxy or biphenyl, and R.sup.2 is equal to Z.sup.1 or R.sup.1, or is lower alkyl, lower alkenyl, phenyl, or phenyl substituted with lower alkyl or lower alkoxy. The novel compounds may be used as such for modifying the hydrophilic surface for a variety of purposes, such as for chromatographic purposes or for use in electronics, or the compound may be polymerized, optionally using as co-reactants known silanes, to form polymers especially well-suited for chromatographic purposes.

Dependencies are inferred from the claim text.