prov:value
| - rably a C9-C12 arylalkenyl group, a ???NR2 15, ???SR15, ???OR15, ???OSiR3 15 or ???PR2 15 radical, wherein R15 is one of a halogen atom, preferably a chlorine atom, a C1-C10 alkyl group, preferably a C1-C3 alkyl group, or a C6-C10 aryl group, preferably a C6-C9 aryl group; [0041] R7 is [0042] wherein: [0043] R11, R12 and R13 are identical or different and are a hydrogen atom, a halogen atom, a C1-
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