Radiation synthesis of poly(N-vinylpyrrolidone-co-methacrylic acid) hydrogels and their usability in uranyl ion adsorption

• Published in: Journal of applied polymer science Vol. 114; no. 1; pp. 543 - 550
• Main Authors: Şolpan, Dilek, Torun, Murat
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 05.10.2009; Wiley
• Subjects: Adsorption; Applied sciences; Exact sciences and technology; gamma-irradiation; Hydrogels; Methacrylic acid; Moles; Monomers; Organic polymers; Physicochemistry of polymers; poly(N-vinylpyrrolidone-co-methacrylicacid) hydrogels; Properties and characterization; Solution and gel properties; Swelling; Uptakes; uranyl ions; Radiochemical copolymerization; adsorption; poly(N-vinylpyrrolidone-co-methacrylicacid) hydrogels; Swelling; Liquid solid adsorption; Experimental study; Property processing relationship; Organic adsorbent; Colloidal gel; Methacrylic acid copolymer; Gamma radiation; uranyl ions; Preparation; Pyrrolidone(vinyl) copolymer; Hydrogel; gamma-irradiation; Uranyl
• ISSN: 0021-8995; 1097-4628; 1097-4628
• DOI: 10.1002/app.30557

In this study, N-vinylpyrrolidone(VP)/methacrylic acid (MAA) mixtures have been prepared at three different mole percents which the methacrylic acid composition around 5, 10, and 15%. Poly(N-vinylpyrrolidone-co-methacrylicacid) P(VP/MAA) hydrogels irradiated at 3.4 kGy have been used for swelling and diffusion studies in water and uranyl ion solutions. The influence of dose, pH, relative amounts of monomers in MAA/VP monomer mixtures on the swelling properties have been investigated. P(VP/MAA) hydrogels were swollen in distilled water at pH 7.0. P(VP/MAA)1 hydrogel containing 36% (mole percent) methacrylic acid showed the maximum percent swelling in water. Adsorption isotherms were constructed for uranyl ions and P(VP/MAA) hydrogel systems. It has been found that P(VP/MAA) hydrogels have very high uptake of the uranyl ions succesfully in water containing uranyl ions.