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Type: Journal article
Title: Synergetic catalytic effect of α-cyclodextrin on silver nanoparticles loaded in thermosensitive hydrogel
Other Titles: Synergetic catalytic effect of alpha-cyclodextrin on silver nanoparticles loaded in thermosensitive hydrogel
Author: Wang, M.
Wang, J.
Wang, Y.
Liu, C.
Liu, J.
Qiu, Z.
Xu, Y.
Lincoln, S.
Guo, X.
Citation: Colloid and Polymer Science: Kolloid-Zeitschrift und Zeitschrift fuer Polymere, 2016; 294(6):1087-1095
Publisher: Springer
Issue Date: 2016
ISSN: 0303-402X
Statement of
Mengxue Wang, Jie Wang, Yiming Wang, Chang Liu, Jianjia Liu, Zhiqiang Qiu, Yisheng Xu, Stephen F. Lincoln, Xuhong Guo
Abstract: Thermosensitive poly(NIPAAm-co-AMPS) hydrogels were prepared by copolymerization of N-isopropyl acrylamide (NIPAAm) and 2-acrylamido-2-methyl 1-propansulfonic acid (AMPS) by employing N,N′- methylenebis(acrylamide) (BIS) as cross-linker. Uniformly distributed silver nanoparticles (Ag-NP) were obtained within hydrogel networks as nanoreactors via in situ reduction of silver nitrate (AgNO3) using sodium borohydride (NaBH4) as reducing agent. The catalytic properties of Ag-NP-poly(NIPAAm-co-AMPS) hydrogels presented obvious temperature dependence upon the reduction of 4-nitrophenol (4-NP) in aqueous solution. Interestingly, the addition of α-cyclodextrin (α-CD) could further enhance the reduction rate and change the associated activation parameters. This advanced catalytic system with temperature dependence and α-CD synergetic effect presented promising applications in catalytic chemistry.
Keywords: Thermosensitive hydrogel; Ag nanoparticles; α-Cyclodextrin; Synergetic catalysis
Rights: © Springer-Verlag Berlin Heidelberg 2016
DOI: 10.1007/s00396-016-3867-x
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