ANIONIC-POLYMERIZATION OF ACRYLIC-MONOMERS .8. SYNTHESIS AND CHARACTERIZATION OF (METH)ACRYLIC END-FUNCTIONALIZED POLYMERS - MACROMONOMERS AND TELECHELICS

Tailor-made poly(tert-butyl acrylate) macromonomers, which are useful building blocks for the synthesis of comb or multiblock copolymers, have been successfully synthesized by deactivation of living PtBA macroanions with suitable electrophiles bearing either styrene or methacrylic unsaturation. Mono- or bifunctional initiators such as sec-butyllithium or naphthalenyllithium can be used. When these initiators were modified by LiCl as a mu-type ligand, the macroanions which are known to be living were functionalized with high efficiency. Characterization of the various macromonomers was performed using H-1 NMR spectroscopy and SEC.