The number (Mn) and weight (Mw) averaged molecular weight, as well as dispersity index (Đ) of furan-based copolymers, were determined by size exclusion chromatography (SEC) using an Agilent 1200 modular HPLC series system with a refractive index detector. The system was equipped with two PLgel 5 μm MIXED-C columns (300x7.5 mm).