POLYMÉTALLOXANE, SON PROCÉDÉ DE PRODUCTION, COMPOSITION ASSOCIÉE, FILM DURCI ET SON PROCÉDÉ DE PRODUCTION, ET ÉLÉMENTS ET COMPOSANTS ÉLECTRONIQUES LES COMPRENANT

摘要

Disclosed is a polymetalloxane including a constituent unit represented by the following general formula (1), which stably exists in a transparent and uniform state in a solution and can form a homogeneous cured film: wherein R 1 is an organic group and at least one of R 1 is an (R 3 3 SiO-) group, R 3 is optionally selected from specific groups, R 2 is optionally selected from specific groups, when plural R 1 , R 2 , and R 3 exist, they may be the same or different, M represents a specific metal atom, m is an integer indicating a valence of a metal atom M, and a is an integer of 1 to (m - 2).