Authors:
Ting Shan Shanghai University Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering Jiading, Shanghai 201800 P.R. China

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Jie Chen Shanghai University Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering Jiading, Shanghai 201800 P.R. China

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Liming Yang Shanghai University Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering Jiading, Shanghai 201800 P.R. China

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Shaowei Jie Shanghai University Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering Jiading, Shanghai 201800 P.R. China

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Qiang Qian Shanghai University Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering Jiading, Shanghai 201800 P.R. China

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Abstract  

A β-cyclodextrin (β-CD) based monomer (MAH-β-CD) containing vinyl and carboxyl functional groups was synthesized by reaction of β-CD with maleic anhydride (MAH). A novel hydrogel, poly(AAc-co-MAH-β-CD) with pH and ionic strength sensitivities, was prepared by irradiating the aqueous solution mixture of acrylic acid (AAc) and MAH-β-CD with electron beam. The effect of the feed ratio of the components and irradiation dose on the swelling and deswelling properties of the hydrogel was studied, respectively, the effect of pH and ionic strength on the swelling ratio was determined. Experimental results showed that these copolymer hydrogels did not show any noticeable change in swelling ratio at lower pH range (pH 1–3). However they showed an abrupt increase in swelling ratio at the range of pH 3–6, due to the ionization of carboxyl groups. Fourier transform infrared (FT-IR) spectrometer was applied in the attenuated total reflectance (ATR) mode for analyzing the structure change of the hydrogels after the treatment of different pH buffer solutions.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)