Bertolini, Federico A.; Soccio, Michelina; Weinberger, Simone; Guidotti, Giulia; Gazzano, Massimo; Guebitz, Georg M.; Lotti, Nadia; Pellis, Alessandro published an article in 2021, the title of the article was Unveiling the enzymatic degradation process of biobased thiophene polyesters.Application of 111-29-5 And the article contains the following content:
In the past 20 years, scientific research focused on the identification of valid alternatives to materials of fossil origin, in particular, related to biobased polymers. Recently, the efforts led to the synthesis of thiophene-based polymers (TBPs), a new class of polyesters based on 2,5-thiophenedicarboxylic acid (TPCA) that can be industrially produced using biomass-derived mols. In this study, TBPs were synthesized using diols with different chain length (from C4 to C6) leading to poly(butylene 2,5- thiophenedicarboxylate) (PBTF), poly(pentamethylene 2,5-thiophenedicarboxylate) (PPeTF), and poly(hexamethylene 2,5-thiophenedicarboxylate) (PHTF), resp., that were processed to thin films. To investigate enzymic hydrolysis of these polymer films, cutinase 1 (Thc_cut1) and cutinase 2 (Thc_cut2) from Thermobifida cellulosilytica were recombinantly expressed in the host E. coli and purified. The SEM anal. showed that tiny holes were formed on the surface of the films and after 72 h PPeTF was completely degraded. After 72 h of incubation at 65°C with 5μM Thc_cut1, weight loss and HPLC anal. indicated 9, 100, and 80% degradation of PBTF, PPeTF, and PHTG with a concomitant release of 0.12, 2.70, and 0.67 mM of TPCA. The LC-TOF/MS anal. indicated that Thc_cut2 in particular released various oligomers from the polymer during the reaction. In addition, the FTIR anal. showed the formation of novel acid and hydroxyl groups on the polymer surfaces. The results showed that the two used thermostable cutinases are promising biocatalysts for the environmentally friendly degradation of TPCA-based polyesters, in view of a possible sustainable recycling of plastic waste through resynthesis processes. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Application of 111-29-5
The Article related to thiophene polyester enzymic degradation, biodegradability, circular economy, circular materials, cutinases, polyesters, thiophene-based polymers, Plastics Fabrication and Uses: Plastic Product Uses and other aspects.Application of 111-29-5
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