《Novel composite oxygen-containing resins with effective adsorption towards anilines: physical and chemical adsorption》 was written by Xu, Chao; Yu, Wenhao; Zheng, Kexin; Ling, Chen; Yu, Shitao; Jiang, Long. Electric Literature of C4H5ClO3 And the article was included in Journal of Chemical Technology and Biotechnology in 2020. The article conveys some information:
The adsorption resins have been successfully used for the treatment of various types of industrial wastewater due to their excellent advantages of high degree of harmlessness, wonderful resource utilization effect, and adjustable material structure. However, the adsorption capacity of traditional resin to the high polarity aniline has been limited since the adsorption mainly relies on hydrophobic adsorption. In this study, novel oxygen-containing resins were prepared by modifying a benzene skeleton through chem. functional groups screening and phys. structure regulation. The influences of functional groups to the precursor resins were thoroughly studied and the adsorption capacity of the dihydrofuran-2,5-dione modified resins was 7.9% higher than the precursor resins, exhibiting the unparalleled adsorption activity to p-aminobenzoic acid (PABA). Subsequently, a series of dihydrofuran-2,5-dione modified crosslinking resins named FSG1-5 were prepared with various phys. structures. The resin FSG-2 exhibited the best adsorption property, as the adsorption capacity to p-aminobenzoic acid was 28.3% higher than H-103 (a com. hyper-cross-linked resin). On the basis of the comparison of kinetics, thermodn., and resin’s physicochem. structure, FSG-2 could achieve efficient adsorption to aniline compounds by phys. adsorption, such as π-π conjugation, mol. size effect, and chem. adsorption, including hydrogen bonding and acid-base effect enhanced the adsorption interaction, which laid a theor. foundation for the design and preparation of new materials. In the part of experimental materials, we found many familiar compounds, such as Ethyl oxalyl monochloride(cas: 4755-77-5Electric Literature of C4H5ClO3)
Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. Lacking the ability to form hydrogen bonds, acyl chlorides have lower boiling and melting points than similar carboxylic acids. For example, acetic acid boils at 118 °C, whereas acetyl chloride boils at 51 °C. Like most carbonyl compounds, infrared spectroscopy reveals a band near 1750 cm−1.Electric Literature of C4H5ClO3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics