Poly (polyethylene glycol diacrylate‐co‐allyl glycidyl ether) cryogels: Preparation, modification with iminodiacetic acid, and application of Cu(II) removal. Issue 16 (15th February 2023)

• Record Type: Journal Article
• Authors: Zhu, Zhifei; Li, Junying; Ma, Feng; Chen, Guangxu; Tian, Haoran; Li, Jian; Yang, Pengfei
• Is Part Of: Journal of applied polymer science. Volume 140:Issue 16(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-02-15
• Subjects: absorption -- cryogel -- Cu(II) -- low‐temperature -- porous material; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.53754
• Languages: English
• ISSNs: 0021-8995

Abstract

Abstract: In this study, poly (polyethylene glycol diacrylate‐ co ‐allyl glycidyl ether) cryogels (p(PEGDA‐ co ‐AGE)) was synthesized by low‐temperature polymerization using polyethylene glycol diacrylate (PEGDA), allyl glycidyl ether (AGE), and N, N ′‐methylenebisacrylamide (MBAAm). The cryogel was then modified with iminodiacetic acid (IDA) by a ring‐opening reaction of AGE to attach carboxyl groups on the surface. The modified cryogel (p(PEGDA‐ co ‐AGE)‐IDA) was characterized by scanning electron microscope, energy dispersive X‐ray spectra, infrared spectra, X‐ray photoelectron spectroscopy, and compression test, as well as its absorption performance. It was found that the adsorption efficiency and the reusability of cryogels for Cu(II) was related to pH, and the maximum adsorption capacity was 76.49 mg g −1 (pH = 6). In addition, the kinetics of Cu(II) adsorption on cryogels was investigated to clarify the adsorption mechanism. Abstract : Poly (polyethylene glycol diacrylate‐ co ‐allyl glycidyl ether) cryogel column was synthesized by low‐temperature polymerization, which was then modified with iminodiacetic acid to attach carboxyl groups on the surface. The cryogel column showed excellent adsorption performance and good recycling property for heavy metals, which had potential application prospect in a wide range of scenarios for sewage treatment.