Journal of Materials Science and Chemical Engineering

Volume 3, Issue 7 (July 2015)

ISSN Print: 2327-6045   ISSN Online: 2327-6053

Google-based Impact Factor: 0.93  Citations  

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

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DOI: 10.4236/msce.2015.37002    3,149 Downloads   3,847 Views   Citations

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.

Cite this paper

Murakami, K. , Sato, Y. and Inoue, Y. (2015) Synthesis of P(NIPAM-co-Am)/Mesoporous Silica Composites and Their Temperature- Responsive Anion Exchange. Journal of Materials Science and Chemical Engineering, 3, 7-15. doi: 10.4236/msce.2015.37002.

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