| http://www.w3.org/ns/prov#value | - methacrylic acid, and the polybasic acid anhydride (f) is an alicyclic dibasic acid anhydride. wherein R represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, X represents a hydrogen atom or a halogen atom, Y represents an alkyl group or an alkoxy group each having 1 to 18 carbon atoms, k is an integer of 0, 1, or 2, and m is an integer of 0 or more.
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