Polar and Electrooptical Properties of [60]Fullerene-Containing Poly(benzyl ether) Dendrimers in Solution

[60]Fulleropyrrolidine-containing poly(benzyl ether) dendrimers <b>1−4</b> were synthesized via 1,3-dipolar cycloaddition of amino acid and aldehyde derivatives and [60]fullerene. Their dielectric and electrooptical (Kerr effect) solution properties were studied and compared with poly(propyleneimine) dendrimers, namely DAB-<i>dendr</i>-(alkyl chain)_n and DAB-<i>dendr</i>-(CN)_n, and with known symmetrical and non-symmetrical poly(benzyl ether) dendrimers carrying benzyl groups ([G_<i>x</i>]-[C]-[G_<i>x</i>]) or benzyl and cyanobenzyl groups (CN_<i>n</i>-[G_<i>x</i>]-[C]-[G_<i>x</i>+1]), respectively. It was shown that <b>1−4</b> display similar polar and electrooptical characteristics independent of their dendrimer generation. This is in contrast to the reference dendrimers for which a strong dependence of total dipole moment on dendrimer generation was observed.