Poly(ethylenefuranoate) copolymers and methods

The present invention is directed to PEF copolymers, methods for processing the same to provide PEF preforms and articles (e.g., containers), as well as the preforms and the articles formed by the methods. Advantageously, the PEF copolymers, the preforms and the articles of the present invention have one or more improved properties relative to unmodified (i.e., neat) PEF and articles formed therefrom.