Effects of Alkyl Chain Length of Aliphatic Dicarboxylic Ester on Degradation Properties of Aliphatic-Aromatic Water-Soluble Copolyesters for Warp Sizing was written by Li, Manli;Jin, Enqi;Qiao, Zhiyong;Zhao, Rongli. And the article was included in Fibers and Polymers in 2018.HPLC of Formula: 106-79-6 This article mentions the following:
In order to study the effects of alkyl chain length of aliphatic dicarboxylic ester (ADE) monomers on enzymic and hydrolytic degradation properties of aliphatic-aromatic water-soluble copolyesters for warp sizing, di-Me terephthalate, di-Me isophthalate-5-sulfonic sodium, and ADE monomers with various alkyl chain lengths were copolymerized through a two-step method, i.e. transesterification and polycondensation. The enzymic and hydrolytic degradation properties of the copolyesters were studied in terms of reduction rates of mol. weight, glass transition temperatures, and surface morphol. after being cultivated for 24-96 h. It was found that, enzymic degradation of the copolyesters strongly depended on alkyl chain length of ADE monomers. After being enzymically degraded for 96 h, reduction rate of mol. weight of the copolyester using di-Me malonate as ADE monomers could reach 22.2%. Meanwhile, the hydrolytic degradation of the copolyesters was not directly related to the alkyl chain length. In the experiment, the researchers used many compounds, for example, Dimethyl decanedioate (cas: 106-79-6HPLC of Formula: 106-79-6).
Dimethyl decanedioate (cas: 106-79-6) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.HPLC of Formula: 106-79-6
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics