FURTHER INVESTIGATION OF THE PREPARATION PROCESS OF POLY(P-PHENYLENEVINYLENE) LANGMUIR-BLODGETT-FILMS | Health & Environmental Research Online (HERO)

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Citation
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HERO ID

3860154

Reference Type

Journal Article

Title

FURTHER INVESTIGATION OF THE PREPARATION PROCESS OF POLY(P-PHENYLENEVINYLENE) LANGMUIR-BLODGETT-FILMS

Author(s)

Wu, AP; Yokoyama, S; Watanabe, S; Kakimoto, M; Imai, Y; Araki, T; Iriyama, K

Year

1994

Is Peer Reviewed?

Journal

Thin Solid Films
ISSN: 0040-6090
EISSN: 1879-2731

Volume

244

Issue

1-2

Page Numbers

750-753

DOI

10.1016/0040-6090(94)90564-9

Web of Science Id

WOS:A1994NN33000014

Abstract

The Langmuir-Blodgett (LB) films of conducting poly(p-phenylenevinylene) (PPV) were prepared by thermal treatment (250-degrees-C, 1 Torr) of the LB film of the PPV precursor, amphiphilic poly(p-xylylene-alpha-diethylsulphonium) salt with perfluorononanoate counterion. The formation of the pi-conjugated PPV structure varied with the thermal annealing time and was studied by means of UV spectroscopy. The elimination of the sulphide and fluorinated fatty acid during the thermal treatment was determined quantitatively by X-ray photoelectron spectroscopy. Both results indicated that extension of the pi-conjugated structure could be realized and conversion from the PPV precursor to PPV could be completed within 10 min under these conditions. Furthermore, transmission electron microscopy examination revealed a gradual change in the surface image from heterogeneous to homogeneous during the thermal treatment, which indicated that a smooth surface of the PPV LB film was gradually formed by the thermal conversion.