Molecular interaction in langmuir-blodgett films of amphiphilic polysilanes

Shu Seki; Masato Ando; Tetsuya Yamaki; Yukio Nakashiba; Keisuke Asai; Kenkichi Ishigure; Shu Seki; Seiichi Tagawa

doi:10.2494/photopolymer.8.89

Molecular interaction in langmuir-blodgett films of amphiphilic polysilanes

Shu Seki, Masato Ando, Tetsuya Yamaki, Yukio Nakashiba, Keisuke Asai, Kenkichi Ishigure, Shu Seki, Seiichi Tagawa

ENG - Applied Chemistry

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Chemically modified amphiphilic polysilanes with ammonium side chains showed quite new emission bands in the visible region other than the fluorescence of polysilanes via singlet σ^*. The new emission bands are ascribed to the exciplex formation between an ammonium site and a side chain phenyl ring or a silicon conjugated segment. The exciplex emission bands basically consisted of two bands (450nm and 560nm) in ion beam induced emission spectra. Both two bands were observed for random casted films of this amphiphilic polysilane, though only shorter one was observed for the films oriented by means of Langmuir-Blodgett technique, This emission spectral difference is explained by the difference in the degree of molecular orientation of these films. The changes in the inter- and intramolecular interaction are discussed in the present paper comparing the microstructures in LB films with that in random casted films of the amphiphilic polysilanes.

Original language	English
Pages (from-to)	89-100
Number of pages	12
Journal	Journal of Photopolymer Science and Technology
Volume	8
Issue number	1
DOIs	https://doi.org/10.2494/photopolymer.8.89
Publication status	Published - 1995

Access to Document

10.2494/photopolymer.8.89

Cite this

@article{95e7ca3020634e1ab1aebdf06fcb3d8f,

title = "Molecular interaction in langmuir-blodgett films of amphiphilic polysilanes",

abstract = "Chemically modified amphiphilic polysilanes with ammonium side chains showed quite new emission bands in the visible region other than the fluorescence of polysilanes via singlet σ*. The new emission bands are ascribed to the exciplex formation between an ammonium site and a side chain phenyl ring or a silicon conjugated segment. The exciplex emission bands basically consisted of two bands (450nm and 560nm) in ion beam induced emission spectra. Both two bands were observed for random casted films of this amphiphilic polysilane, though only shorter one was observed for the films oriented by means of Langmuir-Blodgett technique, This emission spectral difference is explained by the difference in the degree of molecular orientation of these films. The changes in the inter- and intramolecular interaction are discussed in the present paper comparing the microstructures in LB films with that in random casted films of the amphiphilic polysilanes.",

author = "Shu Seki and Masato Ando and Tetsuya Yamaki and Yukio Nakashiba and Keisuke Asai and Kenkichi Ishigure and Shu Seki and Seiichi Tagawa",

year = "1995",

doi = "10.2494/photopolymer.8.89",

language = "English",

volume = "8",

pages = "89--100",

journal = "Journal of Photopolymer Science and Technology",

issn = "0914-9244",

publisher = "Tokai University",

number = "1",

}

TY - JOUR

T1 - Molecular interaction in langmuir-blodgett films of amphiphilic polysilanes

AU - Seki, Shu

AU - Ando, Masato

AU - Yamaki, Tetsuya

AU - Nakashiba, Yukio

AU - Asai, Keisuke

AU - Ishigure, Kenkichi

AU - Seki, Shu

AU - Tagawa, Seiichi

PY - 1995

Y1 - 1995

N2 - Chemically modified amphiphilic polysilanes with ammonium side chains showed quite new emission bands in the visible region other than the fluorescence of polysilanes via singlet σ*. The new emission bands are ascribed to the exciplex formation between an ammonium site and a side chain phenyl ring or a silicon conjugated segment. The exciplex emission bands basically consisted of two bands (450nm and 560nm) in ion beam induced emission spectra. Both two bands were observed for random casted films of this amphiphilic polysilane, though only shorter one was observed for the films oriented by means of Langmuir-Blodgett technique, This emission spectral difference is explained by the difference in the degree of molecular orientation of these films. The changes in the inter- and intramolecular interaction are discussed in the present paper comparing the microstructures in LB films with that in random casted films of the amphiphilic polysilanes.

AB - Chemically modified amphiphilic polysilanes with ammonium side chains showed quite new emission bands in the visible region other than the fluorescence of polysilanes via singlet σ*. The new emission bands are ascribed to the exciplex formation between an ammonium site and a side chain phenyl ring or a silicon conjugated segment. The exciplex emission bands basically consisted of two bands (450nm and 560nm) in ion beam induced emission spectra. Both two bands were observed for random casted films of this amphiphilic polysilane, though only shorter one was observed for the films oriented by means of Langmuir-Blodgett technique, This emission spectral difference is explained by the difference in the degree of molecular orientation of these films. The changes in the inter- and intramolecular interaction are discussed in the present paper comparing the microstructures in LB films with that in random casted films of the amphiphilic polysilanes.

UR - http://www.scopus.com/inward/record.url?scp=0345315837&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0345315837&partnerID=8YFLogxK

U2 - 10.2494/photopolymer.8.89

DO - 10.2494/photopolymer.8.89

M3 - Article

AN - SCOPUS:0345315837

SN - 0914-9244

VL - 8

SP - 89

EP - 100

JO - Journal of Photopolymer Science and Technology

JF - Journal of Photopolymer Science and Technology

IS - 1

ER -

Molecular interaction in langmuir-blodgett films of amphiphilic polysilanes

Abstract

Access to Document

Other files and links

Fingerprint

Cite this