prov:value
| - when v, w and x are an integer of 1, Y1, Y2 and Y3, which may be the same or different, are each independently an alkylene group which may have a substituent, a cycloalkylene group which may have a substituent, an alkylene ether group which may have a substituent, oxygen atom, sulfur atom, or vinylene group; 0.1???k???1; 0???j???0.9; n is an integer of 5 to 5,000; and X is a bivalent aliphatic gro
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