Y. Nagasaki et al., ISOMERIZATION POLYMERIZATIONS OF 4-SUBSTITUTED STYRENES - SYNTHESIS OF MACROMONOMERS WITH AMINO AND OR SILYL GROUPS/, Macromolecules, 27(25), 1994, pp. 7236-7239
Lithium diisopropylamide (LDA) induced metalation reaction of styrenes
with para substituents such as 4-methylstyrene (MST), 4-[(trimethylsi
lyl)methyl]styrene (SMS), and 4-[(dimethylamino)methyl]styrene (AMS) t
o form vinylbenzyllithium (VBL) derivatives. VBL derivatives initiated
isomerization polymerizations to form oligomers with a polymerizable
vinyl end and with functional groups such as amino groups and trimethy
lsilyl groups in the side chain. Cooligomerization of the 4-substitute
d styrenes gave macromonomers with a predicted extent of functional gr
oups in the side chain.