Aliphatic/aromatic copolyesters containing biobased ω-hydroxyfatty acids: Synthesis and structure–property relationships

Structure–properties relationship of fatty acid-based thermoplastics as synthetic polymer mimics

“…Particularly, the copolymer comprising 60 mol% of biobased ω-OHC14 repeating units showed similar tensile properties to Ecoflex. 55 To conclude, many routes have been investigated to mimic polyethylene starting from plant oil feedstock. Indeed, fatty acids already contain long chain linear segments that make them suitable for the design of long methylene chain building blocks.…”

Synthesis of copolyesters with bio-based lauric diacid: structure and physico-mechanical studies

“…This transition is very different from other copolyesters series, in which the elongation at break of the copolyester with composition near 50/50 is usually the highest. 43,44 A possible explanation to this phenomenon is due to the low M n and possible high entanglement molecular weight for PBLC-40 and PBLC-60, in which the molecular chain can not form effective entanglements that are necessary for good ductility. 45…”

A high-molecular-weight and high-Tg poly(ester carbonate) partially based on isosorbide: synthesis and structure–property relationships

“…The α-relaxation, generally called the glass transition, is due to the motion of segments of the polymer chain. 16,35,36 For PICBTs, this relaxation may be attributed to the combined motions of the flexible part of the repeating unit, such as methylene units, 37 carbonyl groups, carbonate groups and the end groups. This is a consequence of the copolymers randomness degree discussed above and listed in Table 2.…”