RESIN COMPOSITION FOR FORMING OPTICAL WAVEGUIDE, RESIN FILM FOR FORMING OPTICAL WAVEGUIDE, AND OPTICAL WAVEGUIDE

摘要

[Problem] Provided include: a resin composition for forming an optical waveguide, the resin composition having high productivity and being capable forming a thick film with high accuracy excellent in transparency, heat resistance and toughness; a resin film for forming an optical waveguide; and an optical waveguide excellent in transparency, environmental reliability and heat resistance. [Means for Solution] A resin composition for forming an optical waveguide, containing (A) a polyhydroxy polyether having an ethylenically unsaturated group on a side chain and an aromatic ring on a main chain, (B) a polymerizable compound having an ethylenically unsaturated group, and (C) a radical polymerization initiator; a resin film for forming an optical waveguide; and an optical waveguide having a core part formed by using the resin film for forming an optical waveguide.