In 2019,European Polymer Journal included an article by Liu, Jingjing; Zhang, Chan; Li, Zhenjiang; Zhang, Lei; Xu, Jiaxi; Wang, Haixin; Xu, Songquan; Guo, Tianfo; Yang, Kun; Guo, Kai. Related Products of 821-41-0. The article was titled 《Dibutyl phosphate catalyzed commercial relevant ring-opening polymerizations to bio-based polyesters》. The information in the text is summarized as follows:
Organocatalyzed ring-opening polymerization (ROP) of cyclic esters was developed into a stage that demanding translation of the academic success into com. viable production An industrial relevant development of the organocatalysis in ROPs required bulk polymerizations at high temperatures up to 180 °C. Organic phosphoric acid was one of the few organocatalysts workable under these conditions that devoid of otherwise commonly appeared transesterification, epimerization, and decarboxylation in the ROPs. A com. di-Bu phosphate (DBuP), which was inexpensive and available by hundreds of tons as antistatic agent, was firstly evaluated as a catalyst. Well-defined polyesters catalyzed by DBuP were obtained with narrow dispersities (Dm 1.08-1.31) and predicted mol. weights from 2.1 to 55 kg mol-1. Series of homopolymers, diblock copolymers and end-functionalized polymers of ε-caprolactone (CL), δ-valerolactone (VL), trimethylene carbonate (TMC), and L-lactide (LA) were synthesized. 1H NMR, 13C NMR, SEC, and MALDI-ToF MS analyses indicated that the obtained polyesters were exactly the designated ones. NMR titration experiments confirmed that the ROP proceeded a bifunctional activation mechanism. The cytotoxicity test using MTT assay showed biosafety of the polyesters. The exptl. results suggested that di-Bu phosphate is a com. organocatalyst widely useful in all major cyclic ester monomer toward com. relevant ring-opening polymerizations In the experiment, the researchers used 5-Hexen-1-ol(cas: 821-41-0Related Products of 821-41-0)
5-Hexen-1-ol(cas: 821-41-0) is a volatile organic compound. Further, it is used to prepare 6-bromo-hex-1-ene by reaction with phosphorus tribromide.Related Products of 821-41-0
Referemce:
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Alcohols – Chemistry LibreTexts