Can. J. Chem., 82, 595-607 (2004)
A. A. Farah and W. J. Pietro
Department of Chemistry, York University, 4700 Keele St., Toronto, Ontario, Canada, M3J 1P3
Well-characterized templates of polymer forming ligands and their ruthenium tris (a,a¢-diimine) initiators were utilized to divergently ring open a e-caprolactone monomer. The same polymers were also obtained through the synthesis of quinoline and bipyridine diimine ligands incorporating poly(e-caprolactone) (PCL) chains. These polymers contain vacant molecular recognition sites enabling subsequent chelation of these macroligands to metal precursors. Both methods provided telechelic (e-caprolactone) ruthenium(II)-centered polyesters of various hierarchy. Solution properties and thermal behaviour of such polyesters are described.