Temperature and pH Responsiveness of Hydrogels Prepared from N-Isopropylacrylamide and Itaconic Acid Monoethyl Ester
نویسندگان
چکیده
منابع مشابه
Investigation of drug release from thermo- and pH-sensitive poly(N-isopropylacrylamide/itaconic acid) copolymeric hydrogels
B. Taşdelen*, N. Kayaman-Apohan, O. Güven and B. M. Baysal Chemistry Department, Çekmece Nuclear Research and Training Center, 34831, P.O. Box 1, Istanbul, Turkey Department of Chemistry, Marmara University, 81040 Göztepe/İstanbul, Turkey Department of Chemistry, Hacettepe University, 06532 Beytepe/Ankara, Turkey TUBITAK Marmara Research Center, Research Institute of Materials and Chemical Tech...
متن کاملpH-thermoreversible hydrogels. I. Synthesis and characterization of poly(N-isopropylacrylamide/maleic acid) copolymeric hydrogels
N-isopropylacrylamide (NIPAAM)/maleic acid (MA) copolymeric hydrogels were prepared by irradiating the ternary mixtures of NIPAAM/MA/Water by g-rays at ambient temperature. The influence of external stimuli such as pH and temperature of the swelling media on the equilibrium swelling properties was investigated. The hydrogels showed both temperature and pH responses. The effect of comonomer conc...
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This study reports the synthesis of polymeric matrices based on N-isopropylacrylamide and itaconic acid and its application for immobilization of lipase from Candida rugosa. The lipase was immobilized by entrapment method. Free and immobilized lipase activities, pH and temperature optima, and storage stability were investigated. The optimum temperature for free and entrapped lipase was found to...
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The conformation of the imprinted pockets in stimulus-responsive networks can be notably altered when the stimulus causes a volume phase transition. Such a tunable affinity for the template molecule finds interesting applications in the biomedical and drug delivery fields. Nevertheless, the effect that the binding of the template causes on the stimuli-responsiveness of the network has barely be...
متن کاملPreparation of Temperature- and pH-Sensitive, Stimuli- Responsive Poly(N-isopropylacrylamide-co-methacrylic acid) Nanoparticles
The effects of the monomer ratio, surfactant, and crosslinker contents on the particle size and phase-transition behavior of the copolymer poly(N-isopropylacrylamide-co-methacrylic acid) (PNIPAAm–MAA) were investigated with Fourier transform infrared, differential scanning calorimetry, and dynamic laser scattering techniques. In addition to the thermoresponsive property of poly(N-isopropylacryl...
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ژورنال
عنوان ژورنال: KOBUNSHI RONBUNSHU
سال: 2004
ISSN: 0386-2186,1881-5685
DOI: 10.1295/koron.61.371