Title :
A novel sensor material from amphiphilic polymer-grafted carbon black
Author :
Nakanoya, T. ; Saitoh, H. ; Yamauchi, T. ; Tsubokawa, N.
Author_Institution :
Graduate Sch. of Sci. & Technol., Niigata Univ., Japan
Abstract :
The grafting of poly(N-isopropylacrylamide) and poly(N,N-diethylacrylamide) onto carbon black was achieved by the radical polymerization of the corresponding monomers in the presence of carbon black using 2,2´-azobisisobutylonitrile as an initiator. It was found that the electric resistance of the composite prepared from these amphiphilic polymer-grafted carbon blacks was extremely increased in various solvent vapors and contamination in n-hexane, and returned to initial resistance when it was transferred into air and pure n-hexane.
Keywords :
carbon compounds; chemical variables measurement; contamination; densitometry; electric resistance; gas sensors; polymerisation; 2,2´-azobisisobutylonitrile; amphiphlic polymer-grafted carbon black; contamination sensor; densitometer; electric resistance; gas sensor; monomers; n-hexane; novel sensor material; poly(N,N-diethylacrylamide); poly(N-isopropylacrylamide); radical polymerization; solvent vapors; Active matrix organic light emitting diodes; Electric resistance; Electrodes; Gas detectors; Materials science and technology; Organic materials; Polymers; Solvents; Surface contamination; Surface resistance;
Conference_Titel :
Sensors, 2004. Proceedings of IEEE
Print_ISBN :
0-7803-8692-2
DOI :
10.1109/ICSENS.2004.1426261
