| 摘要 |
PROBLEM TO BE SOLVED: To use an ionic polymer having a narrow molecular weight distribution in which an ionic group is introduced at 100% as a GPC standard. SOLUTION: The ionic polymer for a GPC standard comprises an ionic water-soluble polymer obtained by RAFT polymerization of one anionic monomer selected from among acrylic acid and derivatives thereof and acrylamide and derivatives thereof. COPYRIGHT: (C)2007,JPO&INPIT
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