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Polythiophene Grafted on Polyethylene Film

Published online by Cambridge University Press:  10 February 2011

N. Chanunpanich ,
A. Ulman ,
Y. M. Strzhemechny ,
S. A. Schwarz ,
J. Domicik ,
M. Rafailovich ,
J. Sokolov ,
A. Janke ,
H. G. Braun  and
T. Kratzmüller
N. Chanunpanich
Affiliation:
Department of Chemical Engineering, Chemistry, and Materials Science, Polytechnic University, Brooklyn, New York 11201 The NSF MRSEC for Polymers at Engineered Interfaces.
A. Ulman
Affiliation:
Department of Chemical Engineering, Chemistry, and Materials Science, Polytechnic University, Brooklyn, New York 11201 The NSF MRSEC for Polymers at Engineered Interfaces.
Y. M. Strzhemechny
Affiliation:
Department of Physics, Queens College of CUNY, Flushing New York 11367 The NSF MRSEC for Polymers at Engineered Interfaces.
S. A. Schwarz
Affiliation:
Department of Physics, Queens College of CUNY, Flushing New York 11367 The NSF MRSEC for Polymers at Engineered Interfaces.
J. Domicik
Affiliation:
Department of Materials Sciences and Engineering, State University of New York at Stony Brook, NY 11794-2275.
M. Rafailovich
Affiliation:
Department of Materials Sciences and Engineering, State University of New York at Stony Brook, NY 11794-2275.
J. Sokolov
Affiliation:
Department of Materials Sciences and Engineering, State University of New York at Stony Brook, NY 11794-2275.
A. Janke
Affiliation:
Institute for Polymer Research, Hohe Str. 6, D-01069 Dresden, Germany
H. G. Braun
Affiliation:
Institute for Polymer Research, Hohe Str. 6, D-01069 Dresden, Germany
T. Kratzmüller
Affiliation:
Institute for Polymer Research, Hohe Str. 6, D-01069 Dresden, Germany
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Abstract

We have successfully grafted polythiophene on polyethylene (PE) film with a three reactions step: gas phase bromination on PE, yielding PE-Br; substitution reaction of PE-Br with 2-thiophene thiolate anion, following by chemical oxidative polymerization. The polymerization was carried out in a suspension solution of anhydrous FeCl3 in CHCl3, yielding a reddish PE-PT film after dedoping with ethanol. ATR-FTIR shows that the polythiophene (PT) was grafted on PE in the 2,5-position; on the other hand, PT homopolymer shows a small amount of 2,4 coupling. XPS reveals higher intensity of the S2p, including neutral and positive sulfur. SEM image reveals the island of PT on the PE film. AFM analysis found the thickness of the island is in the range of 120–145 nm. The conductivity of these thin films is in the range of 10−6 S/cm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 600: Symposium FF – Electroactive Polymers , 1999 , 203
Copyright
Copyright © Materials Research Society 2000

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References

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