FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4290803996> ?p ?o ?g. }

• W4290803996 abstract "Poly(acrylamide- co -acrylic acid) (P(AAm- co -AA)) hydrogels are highly tunable and pH-responsive materials frequently used in biomedical applications. The swelling behavior and mechanical properties of these gels have been extensively characterized and are thought to be controlled by the protonation state of the acrylic acid (AA) through the regulation of solution pH. However, their tribological properties have been underexplored. Here, we hypothesized that electrostatics and the protonation state of AA would drive the tribological properties of these polyelectrolyte gels. P(AAm- co -AA) hydrogels were prepared with constant acrylamide (AAm) concentration (33 wt%) and varying AA concentration to control the amount of ionizable groups in the gel. The monomer:crosslinker molar ratio (200:1) was kept constant. Hydrogel swelling, stiffness, and friction behavior were studied by systematically varying the acrylic acid (AA) concentration from 0–12 wt% and controlling solution pH (0.35, 7, 13.8) and ionic strength ( I = 0 or 0.25 M). The stiffness and friction coefficient of bulk hydrogels were evaluated using a microtribometer and borosilicate glass probes as countersurfaces. The swelling behavior and elastic modulus of these polyelectrolyte hydrogels were highly sensitive to solution pH and poorly predicted the friction coefficient ( µ ), which decreased with increasing AA concentration. P(AAm- co -AA) hydrogels with the greatest AA concentrations (12 wt%) exhibited superlubricity ( µ = 0.005 ± 0.001) when swollen in unbuffered, deionized water (pH = 7, I = 0 M) and 0.5 M NaOH (pH = 13.8, I = 0.25 M) ( µ = 0.005 ± 0.002). Friction coefficients generally decreased with increasing AA and increasing solution pH. We postulate that tunable lubricity in P(AAm- co -AA) gels arises from changes in the protonation state of acrylic acid and electrostatic interactions between the probe and hydrogel surface." @default.
• W4290803996 created "2022-08-12" @default.
• W4290803996 creator A5001435522 @default.
• W4290803996 creator A5018533251 @default.
• W4290803996 creator A5028731885 @default.
• W4290803996 creator A5056822805 @default.
• W4290803996 creator A5064340656 @default.
• W4290803996 creator A5083591579 @default.
• W4290803996 date "2022-08-11" @default.
• W4290803996 modified "2023-10-01" @default.
• W4290803996 title "Superlubricity of pH-responsive hydrogels in extreme environments" @default.
• W4290803996 cites W1964607383 @default.
• W4290803996 cites W1967487706 @default.
• W4290803996 cites W1970408280 @default.
• W4290803996 cites W1976292992 @default.
• W4290803996 cites W1980146564 @default.
• W4290803996 cites W1980757928 @default.
• W4290803996 cites W1980888304 @default.
• W4290803996 cites W1983250328 @default.
• W4290803996 cites W1983932088 @default.
• W4290803996 cites W1991588951 @default.
• W4290803996 cites W1992147682 @default.
• W4290803996 cites W1996073717 @default.
• W4290803996 cites W1997978522 @default.
• W4290803996 cites W2000432085 @default.
• W4290803996 cites W2005662160 @default.
• W4290803996 cites W2006725059 @default.
• W4290803996 cites W2011038175 @default.
• W4290803996 cites W2013941566 @default.
• W4290803996 cites W2014858189 @default.
• W4290803996 cites W2016310155 @default.
• W4290803996 cites W2041320896 @default.
• W4290803996 cites W2041804279 @default.
• W4290803996 cites W2046112419 @default.
• W4290803996 cites W2048877582 @default.
• W4290803996 cites W2049401898 @default.
• W4290803996 cites W2054217840 @default.
• W4290803996 cites W2055175621 @default.
• W4290803996 cites W2064412313 @default.
• W4290803996 cites W2073265295 @default.
• W4290803996 cites W2084938745 @default.
• W4290803996 cites W2085434093 @default.
• W4290803996 cites W2090108703 @default.
• W4290803996 cites W2102250143 @default.
• W4290803996 cites W2103400002 @default.
• W4290803996 cites W2107949846 @default.
• W4290803996 cites W2108941744 @default.
• W4290803996 cites W2114809419 @default.
• W4290803996 cites W2118691586 @default.
• W4290803996 cites W2119572799 @default.
• W4290803996 cites W2127348206 @default.
• W4290803996 cites W2129887024 @default.
• W4290803996 cites W2151220961 @default.
• W4290803996 cites W2289951489 @default.
• W4290803996 cites W2321827573 @default.
• W4290803996 cites W2325491254 @default.
• W4290803996 cites W2552219124 @default.
• W4290803996 cites W2557363345 @default.
• W4290803996 cites W2599765047 @default.
• W4290803996 cites W2602393618 @default.
• W4290803996 cites W2618204817 @default.
• W4290803996 cites W2757884195 @default.
• W4290803996 cites W2767914857 @default.
• W4290803996 cites W2770664248 @default.
• W4290803996 cites W2792716851 @default.
• W4290803996 cites W2793547144 @default.
• W4290803996 cites W2795016212 @default.
• W4290803996 cites W2895398039 @default.
• W4290803996 cites W2895500801 @default.
• W4290803996 cites W2901715026 @default.
• W4290803996 cites W2912407937 @default.
• W4290803996 cites W2923089717 @default.
• W4290803996 cites W2947543197 @default.
• W4290803996 cites W2973722103 @default.
• W4290803996 cites W2995074679 @default.
• W4290803996 cites W2995820134 @default.
• W4290803996 cites W3013389599 @default.
• W4290803996 cites W3088020437 @default.
• W4290803996 cites W3088212821 @default.
• W4290803996 cites W3132069333 @default.
• W4290803996 cites W3138077527 @default.
• W4290803996 cites W3153299085 @default.
• W4290803996 cites W3203587607 @default.
• W4290803996 cites W3209216190 @default.
• W4290803996 cites W4200085683 @default.
• W4290803996 cites W4211157371 @default.
• W4290803996 cites W4213112328 @default.
• W4290803996 cites W4240321248 @default.
• W4290803996 cites W652778864 @default.
• W4290803996 doi "https://doi.org/10.3389/fchem.2022.891519" @default.
• W4290803996 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36034669" @default.
• W4290803996 hasPublicationYear "2022" @default.
• W4290803996 type Work @default.
• W4290803996 citedByCount "4" @default.
• W4290803996 countsByYear W42908039962023 @default.
• W4290803996 crossrefType "journal-article" @default.
• W4290803996 hasAuthorship W4290803996A5001435522 @default.
• W4290803996 hasAuthorship W4290803996A5018533251 @default.
• W4290803996 hasAuthorship W4290803996A5028731885 @default.
• W4290803996 hasAuthorship W4290803996A5056822805 @default.

• next