trade assurance alkaline hydrolysis of polyacrylamide at argentina

trade assurance alkaline hydrolysis of polyacrylamide at argentina
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  • Does pH affect hydrolysis of polyacrylamide hydrogels?
  • Raman spectroscopy confirmed hydrolysis of polyacrylamide hydrogels in both acidic and basic environments over the course of 10 days at room temperature (Fig. 5 a), while swelling measurements indicated a volume increase with increasing pH (Fig. 3 b).
  • Does pH affect redox-initiated polyacrylamide hydrogel lubrication?
  • In this work, the friction coefficients of both redox- and UV-initiated polyacrylamide hydrogels decreased with increasing pH against glass and PTFE countersurfaces, with redox-initiated gels achieving superlubricity at pH = 13.5 ( µ = 0.002 ± 0.002).
  • Are polyacrylamide hydrogels equilibrated?
  • Our results suggest that polyacrylamide hydrogels equilibrated in highly basic conditions, even at mild temperatures, are subject to hydrolysis, which can reduce friction coefficient and elastic modulus.
  • Why are polyacrylamide hydrogels used in biomedical applications?
  • For the past half century, polyacrylamide hydrogels have been widely used in biomedical applications (e.g., drug delivery [ 1 ], cell scaffolds [ 2, 3 ], gel electrophoresis [ 4, 5 ]) due to their ease of fabrication, tunable mechanical and transport properties, and charge neutrality.