Synthesis and property of helical ladder polymer comprising of fuzed benzothofhene ring

Keita Katayose; Ichiro Takemura; Hiroyuki Nishide

Synthesis and property of helical ladder polymer comprising of fuzed benzothofhene ring

Keita Katayose^*, Ichiro Takemura, Hiroyuki Nishide

^*Corresponding author for this work

Waseda Research Institute for Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Thiaheterohelicenes have been often characterized by unique optical activity and stable doped state due to their π-electron-excess conjugation on the thiophene ring. Quantitative oxidation of the methylthio-substituted poly(1,3-phenylene) afforded the precursor polymer. The following intramolecular condensation gave the corresponding helical polymer comprised of fused benzothiophene unit without any structural defects. The MCD absorptions of the polythiaheterohelicene at 298 nm and 342 nm were assigned to the π-π* transition and an original energy transition of the fused ring structure respectively. The electronic state of doped polymer will be also discussed.

Original language	English
Title of host publication	Polymer Preprints, Japan
Pages	2678
Number of pages	1
Volume	54
Edition	2
Publication status	Published - 2005
Event	54th SPSJ Symposium on Macromolecules - Yamagata Duration: 2005 Sept 20 → 2005 Sept 22

Other

Other	54th SPSJ Symposium on Macromolecules
City	Yamagata
Period	05/9/20 → 05/9/22

Keywords

π-conjugation
Fuzed-ring
Helical structure
MCD
Sulfonium salt

ASJC Scopus subject areas

Engineering(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Synthesis and property of helical ladder polymer comprising of fuzed benzothofhene ring",

abstract = "Thiaheterohelicenes have been often characterized by unique optical activity and stable doped state due to their π-electron-excess conjugation on the thiophene ring. Quantitative oxidation of the methylthio-substituted poly(1,3-phenylene) afforded the precursor polymer. The following intramolecular condensation gave the corresponding helical polymer comprised of fused benzothiophene unit without any structural defects. The MCD absorptions of the polythiaheterohelicene at 298 nm and 342 nm were assigned to the π-π* transition and an original energy transition of the fused ring structure respectively. The electronic state of doped polymer will be also discussed.",

keywords = "π-conjugation, Fuzed-ring, Helical structure, MCD, Sulfonium salt",

author = "Keita Katayose and Ichiro Takemura and Hiroyuki Nishide",

year = "2005",

language = "English",

volume = "54",

pages = "2678",

booktitle = "Polymer Preprints, Japan",

edition = "2",

note = "54th SPSJ Symposium on Macromolecules ; Conference date: 20-09-2005 Through 22-09-2005",

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TY - GEN

T1 - Synthesis and property of helical ladder polymer comprising of fuzed benzothofhene ring

AU - Katayose, Keita

AU - Takemura, Ichiro

AU - Nishide, Hiroyuki

PY - 2005

Y1 - 2005

N2 - Thiaheterohelicenes have been often characterized by unique optical activity and stable doped state due to their π-electron-excess conjugation on the thiophene ring. Quantitative oxidation of the methylthio-substituted poly(1,3-phenylene) afforded the precursor polymer. The following intramolecular condensation gave the corresponding helical polymer comprised of fused benzothiophene unit without any structural defects. The MCD absorptions of the polythiaheterohelicene at 298 nm and 342 nm were assigned to the π-π* transition and an original energy transition of the fused ring structure respectively. The electronic state of doped polymer will be also discussed.

AB - Thiaheterohelicenes have been often characterized by unique optical activity and stable doped state due to their π-electron-excess conjugation on the thiophene ring. Quantitative oxidation of the methylthio-substituted poly(1,3-phenylene) afforded the precursor polymer. The following intramolecular condensation gave the corresponding helical polymer comprised of fused benzothiophene unit without any structural defects. The MCD absorptions of the polythiaheterohelicene at 298 nm and 342 nm were assigned to the π-π* transition and an original energy transition of the fused ring structure respectively. The electronic state of doped polymer will be also discussed.

KW - π-conjugation

KW - Fuzed-ring

KW - Helical structure

KW - MCD

KW - Sulfonium salt

UR - http://www.scopus.com/inward/record.url?scp=33645641518&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645641518&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33645641518

VL - 54

SP - 2678

BT - Polymer Preprints, Japan

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

Synthesis and property of helical ladder polymer comprising of fuzed benzothofhene ring

Abstract

Other

Keywords

ASJC Scopus subject areas

UN SDGs

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