Sulfur-containing polymer, method for producing same, and sulfur-containing polymer composition

Abstract

The present invention aims to provide a polymer material that has a high refractive index and can be suitably used for applications such as optical applications. The present invention relates to the sulfur-containing polymer containing at least one structural unit selected from the group consisting of a structural unit (A) represented by the following formula (1), a structural unit (B) represented by the following formula (2), and a structural unit (C) represented by the following formula (3); and a reactive functional group, wherein X1, X2, and X3 are the same as or different from each other and are each an optionally substituted divalent aromatic hydrocarbon group.

Dependencies are inferred from the claim text.