TERMINATION OF LIVING ANIONIC POLYMERIZATIONS USING CHLOROSILANE DERIVATIVES - A GENERAL SYNTHETIC METHODOLOGY FOR THE SYNTHESIS OF END-FUNCTIONALIZED POLYMERS

The transformation of living polymer chain ends is the most widely use d technique to synthesize end-functionalized polymeric materials. Here in we report the development of a new synthetic methodology which is a ble to give very high degrees of functionalization to living anionic p olymer chains. This methodology is based on termination reactions with chlorosilane derivatives containing protected functional groups and i s described with particular emphasis on the introduction of primary al iphatic amines and primary aliphatic alcohols. The extent of functiona lization was verified by using conventional techniques such as gel per meation chromatography (GPC), end group titration, multinuclear magnet ic resonance spectroscopy, and TLC, but was also examined by using tim e-off-flight secondary ion mass spectrometry (TOF-SIMS). The usefulnes s of these materials for construction of supramolecular assemblies is illustrated by the coupling of the polymeric amine to [Ru(bpy)(2)(4-CH 3-4'-CO(2)Hbpy)]-(PF6)(2) (bpy = 2,2'-bipyridine).