Attaching the organosilyl groups to macromolecular chains of 2-hydroxyethyl methacrylate (HEMA) should lead to important modifications of polymer properties. t-BuMe 2 Si and cubane-1,4-dicarboxylic acid (CDA) were covalently linked with 2-hydroxyethyl methacrylate (HEMA). The silyl-linked HEMA is abbreviated as TSMA, while cubane-1,4-dicarboxylic acid (CDA) linked to two HEMA groups is the cross-linking agent (CA). Free radical cross-linking copolymerization of TSMA and HEMA with various ratios of CA as the cross-linking agent was carried out at 60-70 o C. The compositions of the cross-linked, three-dimensional polymers were determined by FTIR spectroscopy. The glass transition temperature (T g ) of the network polymers was determined calorimetrically. The T g of the network polymer increased with increasing cross-linking degree.

The displacement reaction of TsiSiCl3 with nucleophiles does not take place, but in this work we did this reaction with some alcohols and phenols in the presence of base, to product silyl ethers of the type TsiSiCl2OR, TsiSiCl2OAr,