AI Article Synopsis
- A new eco-friendly method was developed for creating nanocomposite hydrogels using frontal polymerization in about 4 minutes, which resulted in materials with great mechanical strength and pH responsiveness.
- The method involves using acrylamide (AM) and choline chloride (ChCl) to produce deep eutectic monomers (DEMs), which are combined with nitrogen-doped carbon nanotubes (N-CNTs) as fillers.
- Tests confirmed that the PAM/N-CNT hydrogels exhibited improved compressive strength and sensitivity to pH changes, particularly in acidic conditions, due to the interactions between the hydrogels and the N-CNTs.
Article Abstract
In this study, a simple and eco-friendly method was proposed to efficiently prepare nanocomposite hydrogels with excellent mechanical properties and satisfactory pH response behaviour by frontal polymerization (FP) of DEM in close to 4 minutes. Acrylamide (AM) and choline chloride (ChCl) were used as raw materials to synthesize deep eutectic monomers (DEMs). Nitrogen-doped carbon nanotubes were dispersed in DEMs as fillers, and poly(acrylamide)/nitrogen-doped carbon nanotube (PAM/N-CNT) nanocomposite hydrogels were prepared by FP. The non-covalent interactions between PAM hydrogels and N-CNTs was verified by Fourier infrared spectroscopy. The mechanical properties of PAM/N-CNT nanocomposite hydrogels were investigated, as well as the swelling and pH response properties. The results showed that the compressive strength of PAM hydrogels was significantly enhanced by the addition of N-CNTs due to the hydrophobic interaction of N-CNTs, which also causes sensitive response properties of the PAM hydrogels in acid solution.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9042954 | PMC |
| http://dx.doi.org/10.1039/d1ra06421e | DOI Listing |
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