Molecular-weight parameters of new silane homo- and copolymers were analyze
d. For all polymers, the M-w values are close ((6.0-8.6).10(4)), the curves
of molecular weight distribution are unimodal, and M-w/M-n = 2-2.5. Cyclic
fragments or those containing the -C=C-groups make the major contribution
to the polysilane chain rigidity.