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http://dx.doi.org/10.1016/S1387-1811(98)00255-8

has been cited by the following article:

• TITLE: Synthesis of P(NIPAM-co-Am)/Mesoporous Silica Composites and Their Temperature- Responsive Anion Exchange

  AUTHORS: Kenji Murakami, Yasuto Sato, Yukihiko Inoue

  KEYWORDS: Mesoporous Silica, Temperature-Responsive Anion Exchanger, N-Isopropylacrylamide, Acrylamide, Transition Temperature

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.3 No.7, June 16, 2015

  ABSTRACT: The purpose of this study is to examine the structure and the temperature-responsive anion exchange property of amino-functionalized mesoporous silica coated with temperature-responsive copolymer, poly(N-isopropylacrylamide-co-acrylamide) (P(NIPAM-co-Am)). For this purpose, the composites which contained 0, 10, or 20 wt% of Am were synthesized. From the TG results, it was found that the amounts of copolymer immobilized on the mesoporous silica were 1.6 - 2.6 wt%. XRD patterns revealed that the structures of composites were hexagonal and almost the same as that of original mesoporous silica without polymer. At low temperature the methyl orange (MO) anions adsorbed and desorbed reversibly with changing pH of the solution, while at high temperature the MO anions did not. This temperature, at which the amount of adsorbed MO anions changed considerably, shifted to the higher temperature side with increasing the amount of added Am.