142 Advances in Polymer Science Editorial Board: A. Abe. A.-C ...

62 B. Charleux, R. Faust
Scheme 16
corresponding primary ester which may affect the copolymerization behavior of
the macromonomer.
The third route for the synthesis of PIB macromonomer was based on the addition
of p-hydroxy-thiophenol onto the PIB double bonds followed by esterification
with methacryloyl chloride (Scheme 14).
High conversion of double bonds was found only with Glissopal, but it was
necessary, even in this case, to separate from non-functional PIB before esterification.
While the feasibility to synthesize methacrylate functional PIBs by all
three methods was demonstrated, due to the necessary column chromatography
step to obtain high functionality PIB macromonomers, the utility of the method
is questionable.