A metal fine particle dispersant is obtained by reaction of a polymer (a) containing a first reactive functional group, an ionic group to be absorbed to metal fine particles, and a polyoxyalkylene side chain with a compound (b) containing a second reactive functional group to be bonded to the first reactive functional group and an active energy ray curable group to be cured by an active energy ray. A metal fine particle dispersion liquid containing the metal fine particle dispersant, metal fine particles, and a dispersion medium is prepared. The metal fine particle dispersion liquid is cured, thereby obtaining a cured film.
将含有第一活性官能团、可被
金属微粒吸收的离子基团和聚氧亚烷基侧链的聚合物 (a) 与含有可与第一活性官能团结合的第二活性官能团和可被活性能量射线固化的活性能量射线可固化基团的化合物 (b) 反应,可获得
金属微粒分散剂。制备含有
金属微粒分散剂、
金属微粒和分散介质的
金属微粒分散液。固化
金属微粒分散液,从而获得固化薄膜。