Polymer compound, highly transparent polyimide, resin composition and article

摘要

A polymer compound, wherein a transparency of a polymer compound which is easily colored due to the formation of a conjugated state is improved by a new method different from conventional ones, is provided. More preferably, polyimide having high transparency and original properties such as heat resistance or the like at the same time is provided. A polymer compound comprising a part which sequences an unsaturated bond containing a n electron orbit and a single bond alternately, wherein at least a part of a conjugated state formed by the n electron orbit in a molecule is shortened or weakened due to a three-dimensional structure of the molecule, thereby a transmittance is improved, is provided. Further, as one embodiment thereof, highly transparent polyimide having a repeating unit represented by the following formula (1) is provided: wherein, each of R¹ to R⁶ is independently a hydrogen atom or a monovalent organic group, and which may be bonded each other; R⁷ is a divalent organic group.