| http://www.w3.org/ns/prov#value | - kyl group or oleyl group, Z is an oxygen atom or sulfur atom, and v and v??? are each an integer of 0 to 70, with the proviso that when R20 is a methyl group or ethyl group and R23 is a group other than methacryloyl group and acryloyl group, v and v??? are an integer of 4 to 70 and an integer of 0 to 70, respectively, when R20 is a methyl group or ethyl group and R23 is a methacryloyl group or acr
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