Results 151 to 160 of about 4,986,391 (226)
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Pharmaceutical Nanotechnology, 2022
Polyacrylic and polymethacrylic acids in combination with polymers such as polyacrylamide provide the ability for controlled and sustained drug delivery since they represent pH- and temperature responsiveness. In addition, the synthesis techniques can be
M. Simeonov, B. Kostova, E. Vassileva
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Polyacrylic and polymethacrylic acids in combination with polymers such as polyacrylamide provide the ability for controlled and sustained drug delivery since they represent pH- and temperature responsiveness. In addition, the synthesis techniques can be
M. Simeonov, B. Kostova, E. Vassileva
semanticscholar +1 more source
Materials Today: Proceedings, 2021
Abstract Polymethacrylic acid (PMAA) and modified Polymethacrylic acid functionalized with catechol (PMAA/CAT), hydroquinone (PMAA/HQ) and catechol-hydroquinone (PMAA/CAT-HQ) were synthesized by oxidative decarboxylation method using ammonium persulphate as an oxidant and characterized using UV–Visible spectroscopy, FT-IR, XRD, TGA and SEM studies ...
V. Ramesh +3 more
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Abstract Polymethacrylic acid (PMAA) and modified Polymethacrylic acid functionalized with catechol (PMAA/CAT), hydroquinone (PMAA/HQ) and catechol-hydroquinone (PMAA/CAT-HQ) were synthesized by oxidative decarboxylation method using ammonium persulphate as an oxidant and characterized using UV–Visible spectroscopy, FT-IR, XRD, TGA and SEM studies ...
V. Ramesh +3 more
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Precipitation of trypsin with polymethacrylic acid [PDF]
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1970 It has been shown that the precipitation of trypsin with polymethacrylic acid results in a reversible or irreversible (after an incubation period) formation of a complex and, in the latter case, a stable, nonactive addition product can be isolated.
M. V. Glikina +2 more
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Thermal degradation of polymethacrylic acid
Journal of Polymer Science Part A: Polymer Chemistry, 1992AbstractThe thermal degradation of polymethacrylic acid was found to have two separate decomposition regions. The first decomposition region, due to anhydride formation primarily, was caused by the conversion of polymethacrylic acid to polymethacrylic anhydride.
Wei-Kuo Chin, Yu-Der Lee, Bang-Chein Ho
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The sedimentation and diffusion of sodium polymethacrylate and polymethacrylic acid
Journal of Polymer Science, 1954AbstractThe sedimentation constants and diffusion coefficients of sodium polymethacrylate and of polymethacrylic acid have been determined at various concentrations of polymer and of added electrolyte and the nature of the charge effects is considered. A ratio y = (molarity of added electrolyte)/(grundmolarity of polymer) is used to obtain S20 at y = ∞
D. O. Jordan, G. J. Howard
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Potentiometric behavior of polymethacrylic acid
Journal of Polymer Science Part A: General Papers, 1964AbstractThe potentiometric behavior of polymethacrylic acid is discussed in terms of a conformational transition. A thermodynamic treatment of this transition is presented. The titration curve of polymethacrylic acid is analyzed in a detailed way and quantitative information regarding the transition is obtained.
M. Mandel, J. C. Leyte
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Complexing of Polyacrylic and Polymethacrylic Acids with Poly-p-Vinylcaprolactam:
, 2011Viscometry, pH-metry and IR spectroscopy were used to investigate the interaction of polyacrylic and polymethacrylic acids with poly-N-vinylcaprolactam in aqueous solution.
V. Baranovskii, P. Vasileva
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, 1957
Lithium ions, and, to a lesser extent, the sodium ions are bound by polyacrylic acid, as evidenced by pH titrations of polyacrylic acid in dilute (0.01 M) solutions of the alkali metal bases and solutions of their corresponding salts.
H. Gregor, Michael Frederick
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Lithium ions, and, to a lesser extent, the sodium ions are bound by polyacrylic acid, as evidenced by pH titrations of polyacrylic acid in dilute (0.01 M) solutions of the alkali metal bases and solutions of their corresponding salts.
H. Gregor, Michael Frederick
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Immobilization of BSA on the polymethacrylic acid
2013 ICME International Conference on Complex Medical Engineering, 2013N, N'-Methylenebisacrylamide was used as the crosslinking agent to prepare the polymethacrylic acid and its carboxyl groups were modified by N-(3-Dimethy-laminopropyl)-N'-ethyl carbodiimide hydrochloride and N-Hydroxy succinimide. The ability of immobilizing BSA and the influence of reacting time of carrier were studied.
Kai-yue Chi +4 more
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, 1991
Complex formation of Zn(II) and Cd(II) with polymethacrylic acid (PMA) and polyacrylic acid (PAA) is studied by sampled direct current, normal pulse, reverse pulse, and differential pulse polarography and by differential pulse anodic stripping ...
J. Díaz-Cruz +3 more
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Complex formation of Zn(II) and Cd(II) with polymethacrylic acid (PMA) and polyacrylic acid (PAA) is studied by sampled direct current, normal pulse, reverse pulse, and differential pulse polarography and by differential pulse anodic stripping ...
J. Díaz-Cruz +3 more
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