Synthesis, characterization and application of poly(N-isopropylacrylamide) coated mesoporous silica nanosphere

INOR 627

Victor S-Y. Lin, vsylin@iastate.edu, Department of Chemistry and Ames Laboratory, Iowa State University, 0755 Gilman Hall, Iowa State University, Ames, IA 50011 and Po-Wen Chung, cedric@iastate.edu, Department of Chemistry and Ames Laboratory, Department of chemistry, Iowa State University, 208 Gilman Hall, Iowa State University, Ames, IA 50011.
We have developed poly(N-isopropylacrylamide)-coated, MCM-41-type mesoporous silica nanosphere (PNiPAM-MSN) material via controlled/living radical polymerization and have characterized the materials by utilizing nitrogen sorption, solid-state NMR, scanning electron microscopy, transmission electron microscopy, and power X-ray diffraction. In addition, PNiPAM-MSN also exhibits interesting thermal behavior in terms of particle partition in a biphasic water/toluene while changing temperature.