Thermally responded self-aggregation of ultrafine particles prepared by modification of monodisperse colloidal silica with iron(II)-bipyridyl branched polymer

Chemistry Letters

Volumn , Issue 11, 1997, Pages 1111-1112

  Yoshinaga, Kohji ^a   Sasao, Yoshiro ^a  

^a KYUSHU INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0040685892     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1997.1111     Document Type: Article

References (10)

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4. Y. Chujo, K. Sada, and T. Saegusa, Macromolecules, 26, 6315 (1993).
5. L. D. Ciana, I. Hamachi, and T. J. Meyer, J. Org. Chem., 54, 1731 (1989).
6. K. Yoshinaga and K. Nakanishi, Composite Interfaces, 2, 95 (1994).
7. K. Yoshinaga, K. Nakanishi, Y. Hidaka, and H. Karakawa, Composite Interfaces, 3, 231 (1995).
8. Coordinated Fe(II) was estimated by the subtraction of Fe(II) amount in the supernatant by a centrifugal separation from dosed Fe(II) amount. The Fe(II) concentration in the solution was determined by the speclrophotometrical absorbance of Fe(II)-tris(bipyridyl) complex at 522 nm (ε=8000).
9. The PNIPAM-modified compsite particles was preprared by the same method as that of composite 4 in the absence of Bpy monomer.
10. The Bpy fraction in the grafted copolymer was estimated on the assumption that the Fe(II)-tridentate bipyridyl complex was formed.