polyesteramide
/ˌpɒlɪɛstəˈramʌɪd/ /ˌpɒlɪɛstəˈreɪmʌɪd/Chemistry
noun
Any polymer which contains both ester and amide linkages, especially any of various rubbery materials of this type which are usually made by mixed condensation reactions and can be drawn into fibres.
Origin
1940s. From polyester + amide.