| prov:value
| - the monomers of the formula I, II, III, IV, V, VI, VII and VIII are: ##STR1## in which R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 are identical or different and are a hydrogen atom or a C1 -C8 -alkyl radical and n is a number from 2 to 10.
|