| abstract |
There is disclosed a method for preparing a silyl-functional living cationic polymer which can be subsequently coupled to form a moisture-curable telechelic system, said method comprising reacting, in the presence of a Lewis acid, (A) at least one cationically polymerizable monomer with (B) an initiator of formula (i) wherein R is selected from H or methyl group, R' is a divalent non-aromatic hydrocarbon group having 1 to 6 carbon atoms, R' is selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, X is halogen, y is halogen and n is 1, 2 or 3. |