prov:value
| - Whereas, as the alkyl groups each having 1 to 5 carbon atoms denoted by R2, mention may be made of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, and isopentyl groups, and the like. [0023] Specific examples of the monomer represented by the formula (I) may include N-vinylformamide, N-methyl-N-vinylformamide, N-vinylacetamide, and N-methyl-N-vinylacetamide. [0024] Examples of N
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