Surface treatment agents and polymers comprising substituted phenyl silanes and siloxanes

Abstract

Abstract The invention concerns new compounds for making a hydrophilic surface lipophilic. The compounds have the general formula ##STR1## wherein Z 1 and Z 2 are independently chlorine, fluorine, bromine, alkoxy with not more than 6 carbon atoms, NH, --NH 2 , --NH 2 ', wherein R' is alkyl with 1 to 3 carbon atoms, --SH, --CN, --N 3 or hydrogen, and R 1 is ##STR2## wherein each of the S-substituents, S 1 , S 2 , S 3 , S 4 and S 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 2 ) 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 3 , can also be phenoxy or biphenyl, and R 2 is equal to Z 1 or R 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.

Inventors

• 👤 Jorma A. Virtanen
• 👤 Paavo K. J. Kinnunen
• 👤 Arvo E. Kulo

Bibliographic Details