Patent ID: 7491782

Claim:
A polymer having a linear, branched, cyclic and/or caged chain of at least 15 A atoms consisting essentially of blocks of the formula —(AHR) n —, —(A k H g−2 R h ) n — or -(c-A m H 2m−2 )—, including at least one block of the formula -(c-A m H 2m−2 )—, where each instance of A is independently Si or Ge and at least one instance of A is Ge; R is independently H, Cl, aryl, substituted aryl or —Si b H b+1 R 1 b ; k is an integer from 2 to 12, g≧2 and (g+h)=2k+2, m is an integer from 5 to 8; R 1 is H, Cl, aryl or substituted aryl, b is an integer of 1 to 6, and (n+b)≧10.