Polymer compound and method for decomposing same, plastic product containing said polymer compound, fiber-reinforced plastic and method for recovering fibers contained therein, and method for producing polyester, polyurethane, or polycarbonate

Abstract

To provide a polymer compound as a novel option for a readily decomposable polymer compound, a method for decomposing the same, and the like. The above-described problem is solved by a polymer compound having a partial structure represented by general formula (1) below. This partial structure comprises a sulfide bond (sulfur atom) in the structure, and a carbonyloxy group is bonded to a carbon atom positioned at a β-position of the sulfur atom. When the polymer compound having this partial structure is treated with an oxidizing agent and a base, first a sulfide portion is oxidized and converted to a sulfone, and then a hydrogen atom of an α-carbon of the sulfone is abstracted as a proton. As a result, the carbonyloxy group in general formula (1) becomes a carboxylate anion, causing intramolecular cleavage. Consequently, this polymer compound is decomposed.

Dependencies are inferred from the claim text.