Polyaddition of p‐phenylenedioxy‐bis‐[6‐(3‐thia‐5‐hexanolides)] with diamines

Meso‐ and racemic p‐phenylenedioxy‐bis‐[6‐(3‐thia‐5‐hexanolides)] (IIIH and IIIL) were prepared starting from the isomers of p‐phenylenedioxy‐bis‐[3‐(1,2‐propylene oxide)] and ethyl thioglycolate via three steps. The bis‐δ‐lactones, IIIH and IIIL, were subjected to polyaddition reaction with diamines to obtain linear polyamides containing OH‐groups.