Synthesis of novel antioxidant carboxymethylcellulose nanocomposites for Cu–Ni–Mo-based steel foams

Tüzün, Elif

doi:10.1007/s10570-023-05436-w

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2024

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“…Polymers 2024, 16, 1547 2 of 10 Nanocellulose foam, prepared by freeze-drying or supercritically drying crosslinked nanocellulose gels, could preserve porous and lightweight structures [16,17]. These structures offer an excellent platform for gas/vapor adsorption.…”

Section: Introductionmentioning

confidence: 99%

A Cellulose-Based Dual-Crosslinked Framework with Sensitive Shape and Color Changes in Acid/Alkaline Vapors

Sun,

Qian,

Gou

et al. 2024

Polymers

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Cellulose detectors, as green sensors, are some of the defensive mechanisms of plants which combat environmental stresses. However, extracted cellulose struggles to fulfil these functionalities due to its rigid physical/chemical properties. In this study, a novel cellulose dual-crosslinked framework (CDCF) is proposed. This comprises a denser temporary physical crosslinking bond (hydrogen bonding) and a looser covalent crosslinking bond (N,N-methylenebisacrylamide), which create deformable spaces between the two crosslinking sites. Abundant pH-sensitive carboxyl groups and ultralight, highly porous structures make CDCF response very sensitive in acid/alkaline vapor environments. Hence, a significant shrinkage of CDCF was observed following exposure to vapors. Moreover, a curcumin-incorporated CDCF exhibited dual shape and color changes when exposed to acid/alkaline vapors, demonstrating great potential for the multi-detection of acid/alkaline vapors.

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Section: Introductionmentioning

confidence: 99%