Synthesis and optical properties of poly(thienylacetylenes)

Ben Zhong Tang; Wan Hong Poon; Han Peng; Nai Ching Wong; Henry; Hin Shan Ye; Takashi Monde

Synthesis and optical properties of poly(thienylacetylenes)

Ben Zhong Tang^*
, Wan Hong Poon
, Han Peng
, Nai Ching Wong
, Henry
, Hin Shan Ye
, Takashi Monde

^*Corresponding author for this work

Department of Chemical and Biological Engineering

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

20 Citations (Scopus)

Abstract

3-Ethynyl-4-(trimethylsilyl)thiophene (1a) and 3-ethynyl-4-bromothiophene (1b) selectively undergo acetylene polymerizations in the presence of the MoCl₅- and WCl₆-Ph₃SiH catalysts to give soluble, high-molecular-weight poly(thienylacetylenes) (2) (M_w up to 602000) in high yields (up to 100%). Light transmission spectra of THF solutions of 2 continuously red-shift with increasing concentration. The concentratochromism shows a logarithmic concentration dependence; that is, the optical transitions of 2 are predictably tunable by simply changing their concentrations.

Original language	English
Pages (from-to)	81-86
Number of pages	6
Journal	Chinese Journal of Polymer Science (English Edition)
Volume	17
Issue number	1
Publication status	Published - 1999

Keywords

Chromic effects
Conjugated polymers
Light transmission
Optical materials
Poly(thienylacetylenes)
Polyacetylenes
π-π interaction

Cite this

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title = "Synthesis and optical properties of poly(thienylacetylenes)",

abstract = "3-Ethynyl-4-(trimethylsilyl)thiophene (1a) and 3-ethynyl-4-bromothiophene (1b) selectively undergo acetylene polymerizations in the presence of the MoCl5- and WCl6-Ph3SiH catalysts to give soluble, high-molecular-weight poly(thienylacetylenes) (2) (Mw up to 602000) in high yields (up to 100\%). Light transmission spectra of THF solutions of 2 continuously red-shift with increasing concentration. The concentratochromism shows a logarithmic concentration dependence; that is, the optical transitions of 2 are predictably tunable by simply changing their concentrations.",

keywords = "Chromic effects, Conjugated polymers, Light transmission, Optical materials, Poly(thienylacetylenes), Polyacetylenes, π-π interaction",

author = "Tang, \{Ben Zhong\} and Poon, \{Wan Hong\} and Han Peng and Wong, \{Nai Ching\} and Henry and Ye, \{Hin Shan\} and Takashi Monde",

year = "1999",

language = "English",

volume = "17",

pages = "81--86",

journal = "Chinese Journal of Polymer Science (English Edition)",

issn = "0256-7679",

publisher = "Springer Verlag",

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TY - JOUR

T1 - Synthesis and optical properties of poly(thienylacetylenes)

AU - Tang, Ben Zhong

AU - Poon, Wan Hong

AU - Peng, Han

AU - Wong, Nai Ching

AU - Henry,

AU - Ye, Hin Shan

AU - Monde, Takashi

PY - 1999

Y1 - 1999

N2 - 3-Ethynyl-4-(trimethylsilyl)thiophene (1a) and 3-ethynyl-4-bromothiophene (1b) selectively undergo acetylene polymerizations in the presence of the MoCl5- and WCl6-Ph3SiH catalysts to give soluble, high-molecular-weight poly(thienylacetylenes) (2) (Mw up to 602000) in high yields (up to 100%). Light transmission spectra of THF solutions of 2 continuously red-shift with increasing concentration. The concentratochromism shows a logarithmic concentration dependence; that is, the optical transitions of 2 are predictably tunable by simply changing their concentrations.

AB - 3-Ethynyl-4-(trimethylsilyl)thiophene (1a) and 3-ethynyl-4-bromothiophene (1b) selectively undergo acetylene polymerizations in the presence of the MoCl5- and WCl6-Ph3SiH catalysts to give soluble, high-molecular-weight poly(thienylacetylenes) (2) (Mw up to 602000) in high yields (up to 100%). Light transmission spectra of THF solutions of 2 continuously red-shift with increasing concentration. The concentratochromism shows a logarithmic concentration dependence; that is, the optical transitions of 2 are predictably tunable by simply changing their concentrations.

KW - Chromic effects

KW - Conjugated polymers

KW - Light transmission

KW - Optical materials

KW - Poly(thienylacetylenes)

KW - Polyacetylenes

KW - π-π interaction

UR - https://www.scopus.com/pages/publications/22644451390

M3 - Journal Article

AN - SCOPUS:22644451390

SN - 0256-7679

VL - 17

SP - 81

EP - 86

JO - Chinese Journal of Polymer Science (English Edition)

JF - Chinese Journal of Polymer Science (English Edition)

IS - 1

ER -

Synthesis and optical properties of poly(thienylacetylenes)

Abstract

Keywords

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