Thermo-sensitive ionic hydrogels synthesis via post quaternization cross-linking: A highly efficient reusable catalytic thermo-responsive nanoreactors was written by Maddahzadeh-Darini, Nastaran;Ghorbanloo, Massomeh;Mori, Masami;Yahiro, Hidenori. And the article was included in Applied Organometallic Chemistry in 2022.Application of 873-76-7 This article mentions the following:
Radical polymerization reactions were employed to synthesize thermo-responsive poly(N-isopropylacrylamide-co-1-vinylimidazole), p (NIPAM-co-VIm), hydrogels at room temperature A postquaternized crosslinking strategy was reported to fabricate thermo-sensitive quaternized-p (NIPAM-co-VIm) ionic hydrogels, Q-p (NIPAm-co-VIm). Combination of methods (high-resolution XPS, dynamic light scattering, and at. absorption spectroscopy) was employed to characterize the composite material. Following the concept of a “green chem.,” the oxidation of alcs./olefins was carried out in aqueous solution by using nanocomposites, p (NIPAM-co-VIm) and Q-p (NIPAM-co-VIm). It was found that the catalytic activity of the metal nanocomposite can be modulated by the lower critical solution temperature (LCST) of particles. The catalyst showed improved catalytic activity above LCST. Quaternized composites showed higher catalytic activity than unquaternized counterparts, due to their high hydrophobicity, effective interactions between substrates and catalyst, and high flexibility. In addition, we demonstrated that the catalytic activity of the nanocomposites can be tuned by the volume phase transition within the hydrogel by using the catalytic reduction of 4-nitrophenol/nitrobenzene, NP/NB, as the hydrophilic/hydrophobic substrates model. For 4-NP, with an increase in temperature from 25掳C to 35掳C (<LCST), the apparent rate constant values had a downward trend. On the contrary, for NB, this value had an upward trend. These results revealed that different changes in rate constant for 4-NP and NB with temperature should be attributed to significant differences in NP/NB affinity to interact with Ag-NPs in the hydrogel. Moreover, the catalysts could efficiently be recycled four times without losing their quality. FT-IR spectra and at. absorption spectroscopy also proved that the catalysts were recyclable, durable, and leaching-resistant. In the experiment, the researchers used many compounds, for example, (4-Chlorophenyl)methanol (cas: 873-76-7Application of 873-76-7).
(4-Chlorophenyl)methanol (cas: 873-76-7) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Application of 873-76-7
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts