prov:value
| - [0115] in which: [0116] G5, G6, G7 and G8, which may be identical or different, denote a hydrogen atom, a phenyl or OH group, a C1-C18 alkyl group, for example methyl, a C2-C18 alkenyl group or a C1-C18 alkoxy group, a and a???, which may be identical or different, denote the number 0 or an integer from 1 to 3, in particular 0, [0117] b denotes 0 or 1, and in particular 1, [0118] m and n are numbe
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