Three-dimensional (3D) thermal controlled polymer for simplified dispersive liquid-liquid microextraction in phthalic acid easters detection of straw was written by Liu, Qian;Wei, Liulin;Chen, Xiaomei;Xu, Yidong;Gao, Xueyun;Zhao, Jingchan. And the article was included in Microchemical Journal in 2022.Product Details of 620-92-8 The following contents are mentioned in the article:
In this paper, a three-dimensional (3D) polyfunctional group and thermal controlled polymer p(POSS-co-DMAEMA) was prepared based on the chem. structure of the phthalic acid easters (PAEs) and applied as an extractant for dispersive liquid-liquid microextraction (DLLME) in combination with HPLC-UV. The polymer with good biocompatibility can be dispersed and aggregated by shaking and heating based on the thermal controlled properties without the assistance of instruments, which shortened the DLLME process as low as 5 min. The feasibility of the developed method was verified using 5 PAEs as targets in simulated water samples, which showed good precision (RSD%, 1.3-10.0, n = 3) and low detection limit (0.19-0.52 ng mL-1) under the optimal extraction conditions. This proposed method was successfully applied in analyzing four straws and good spiked recoveries over the range of 91.60-128.00% were obtained. Furthermore, mol. docking was employed to explore the mol. interactions and calculate binding energies between the polymer and organic pollutants, ensuring the synthesized polymer has a strong extraction ability for PAEs. The satisfied extraction efficiency can be attributed to the fact that the p(POSS-co-DMAEMA) is water-soluble at room temperature but hydrophobic at high temperature, and the high extraction ability can be achieved by the strong intermol. forces between the polymer and PAEs. The exptl. results suggest that the proposed method holds good promise for the trace anal. of PAEs. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Product Details of 620-92-8).
4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Product Details of 620-92-8
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts