Guidotti, Giulia; Soccio, Michelina; Gazzano, Massimo; Siracusa, Valentina; Lotti, Nadia published an article in 2021, the title of the article was Poly(Alkylene 2,5-Thiophenedicarboxylate) Polyesters: A New Class of Bio-Based High-Performance Polymers for Sustainable Packaging.Recommanded Product: 111-29-5 And the article contains the following content:
In the present study, 100% bio-based polyesters of 2,5-thiophenedicarboxylic acid were synthesized via two-stage melt polycondensation using glycols containing 3 to 6 methylene groups. The so-prepared samples were characterized from the mol. point of view and processed into free-standing thin films. Afterward, both the purified powders and the films were subjected to structural and thermal characterization. In the case of thin films, mech. response and barrier properties to O2 and CO2 were also evaluated. From the results obtained, it emerged that the length of glycolic sub-units is an effective tool to modulate the chain mobility and, in turn, the kind and amount of ordered phases developed in the samples. In addition to the usual amorphous and 3D crystalline phases, in all the samples investigated it was possible to evidence a further phase characterized by a lower degree of order (mesophase) than the crystalline one, whose amount is strictly related to the glycol sub-unit length. The relative fraction of all these phases is responsible for the different mech. and barrier performances. Last, but not least, a comparison between thiophene-based homopolymers and their furan-based homologues was carried out. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Recommanded Product: 111-29-5
The Article related to alkylene thiophenedicarboxylate polyester synthesis sustainable packaging, 2,5-thiophenedicarboxylic acid, 2d-ordered structure, barrier properties, mechanical properties, structure-property relationship, thermal properties and other aspects.Recommanded Product: 111-29-5
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