Synthesis and thermal stability of fluoroalkyl end-capped oligomer/silica gel nanocomposites

COLL 216

Tsukasa Tashima, hideosaw@cc.hirosaki-u.ac.jp, Tamikazu Narumi, hideosaw@cc.hirosaki-u.ac.jp, Shun Kodama, and Hideo Sawada, hideosaw@cc.hirosaki-u.ac.jp. Department of Frontier Materials Chemistry, Hirosaki University, Hirosaki-City, 036-8561, Japan
A variety of fluoroalkyl end-capped oligomer/silica gel nanocomposites were prepared by the reactions of tetraethoxysilane and silica nanoparticles in the presence of the corresponding fluorinated oligomers under alkaline conditions. In these fluorinated oligomers/silica gel nanocomposites thus obtained, floroalkyl end-capped N-(1,1-dimethyl-3-oxobutyl)acrylamide oligomer/silica gel nanocomposites exhibited no weight loss even at 800 degrees equal to the original silica gel, although the weight of fluoroalkyl end-capped acrylic acid oligomer in fluoroalkyl end-capped acrylic acid oligomer/silica gel nanocomposite markedly dropped around 250 degrees and decomposed gradually, reaching 0% around 540 degrees.
 

Fundamental Research in Colloid and Surface Chemistry
6:00 PM-8:00 PM, Monday, August 20, 2007 BCEC -- East Registration, Poster

Division of Colloid & Surface Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007