prov:value
| - s in such a way that the monomer/comonomer ratio changes by at least 10% or a further polymerizable monomer of the formulae I-VIII is metered into the monomer or the monomers; and the monomers of the formula I, II, III, IV, V, VI, VII and VIII are: ##STR12## 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
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