Synthesis of polyester by means of polycondensation of diol ester and dicarboxylic acid ester through ester-ester exchange reaction was written by Katoh, Takayoshi;Ogawa, Yukiko;Ohta, Yoshihiro;Yokozawa, Tsutomu. And the article was included in Journal of Polymer Science (Hoboken, NJ, United States) in 2021.COA of Formula: C12H22O4 This article mentions the following:
Based on our finding that the ester-ester exchange reaction between Bu benzoate and Et 4-phenylbenzoate in the presence of a metal alkoxide is faster than the ester-alc. exchange reaction of Bu benzoate and ethanol, we investigated the synthesis of polyester through ester-ester exchange reaction under various conditions. The polycondensation of diol formate and Me dicarboxylate in the presence of a catalytic amount of potassium tert-butoxide (tBuOK) in diglyme at 120°C under reduced pressure (90-100 Torr) afforded high-mol.-weight polyesters. Me dicarboxylate containing an amino group could be used for this polycondensation, although the corresponding diacid chloride containing an amino group was not isolable. The ester-ester exchange reaction could proceed even at the polyester backbone, and the reaction of poly(1,12-dodecamethylene isophthalate) (PEs1) with poly(ε-caprolactone) (PCL) in the presence of tBuOK at 140°C afforded a copolymer PEs1-stat-PCL, the structure of which was confirmed by 13C NMR spectroscopy and DSC thermal anal. A similar copolymer was also obtained by the polycondensation of dodecane-1,12-diol formate and di-Me isophthalate in the presence of PCL and tBuOK at 120°C under reduced pressure. In the experiment, the researchers used many compounds, for example, Dimethyl decanedioate (cas: 106-79-6COA of Formula: C12H22O4).
Dimethyl decanedioate (cas: 106-79-6) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. COA of Formula: C12H22O4
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics