Three side-chain liquid-crystalline polysiloxanes were prepared by hydrosil
ations of poly(dimethyl siloxane-co-methylhydro siloxane)s using a chiral s
mectic C vinyl monomer. All the polymers exhibit a subambient temperature g
lass transition, a chiral smectic C (S-C*) and chiral smectic A (S-A*) phas
e. The maximum spontaneous polarization (P-S) measured for the S-C* phase o
f polymer Ib is 368 nC/cm(2).