Mixing dry carbomer powder with water using magneto-hydrodynamic mixing yielded carbomer dispersions with higher viscosity and increased storage modulus as compared to conventional high shear mixing. H NMR spectroscopy demonstrated this to be induced by a different water distribution, accompanied by lower ionization and higher degradation of the polymer in case of high shear mixing. This investigation reveals H MAS NMR to provide suitable sensitivity and resolution to detect structural changes induced in organic polymers during their hydration.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8982170 | PMC |
| http://dx.doi.org/10.1039/d2ra00176d | DOI Listing |
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