prov:value
| - The invention therefore relates to a process for the preparation of a cycloolefin copolymer by polymerization of from 0.1 to 99.9% by weight, based on the total amount of the monomers, of at least one monomer of the formula I, II, III, IV, V or VI in which R1, R2, R3, R4, R5, R6, R7 and R8 are identical or different and are a hydrogen atom or a C6-C15-aryl or C1-C8-alkyl radical, it being possible
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