Poly(2,3-diphenylphenylene vinylene) derivatives having liquid crystalline side groups

A. K. Li, S. S. Yang, Yanjun Jean Wan, C. S. Hsu, B. R. Hsieh

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Poly(2,3-diphenylphenylene vinylene) (DP-PPV) derivatives with pendant mesogene groups were synthesized. A biphenyoxyl or cyclohexylphenoxy moiety serves as the rigid mesogen core, a methylene chain as the spacer, and a alkyl or alkoxy group as the flexible terminal group. The optical properties of the polymers were investigated by UV-vis and photoluminescent spectroscopies. The polymer films emitted green-blue photoluminescence and electroluminescence. The phase transition behaviors of the polymers were characterized by a polarized optical microscope and a differential scanning calorimeter. The monomers did not show mesophases, while the polymers exhibited a nematic phase around 170-190 °C. The aligned films exhibited dichroism in absorption and emission spectra, implying that the polymers have potential for linearly polarized LED application.

Original languageEnglish (US)
Pages (from-to)2741-2744
Number of pages4
JournalChemistry of Materials
Volume12
Issue number9
DOIs
StatePublished - Oct 21 2000

Fingerprint

Polymers
Crystalline materials
Derivatives
Liquids
Electroluminescence
Dichroism
Calorimeters
Polymer films
Light emitting diodes
Photoluminescence
Microscopes
Optical properties
Monomers
Phase transitions
Spectroscopy
Scanning

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Poly(2,3-diphenylphenylene vinylene) derivatives having liquid crystalline side groups. / Li, A. K.; Yang, S. S.; Wan, Yanjun Jean; Hsu, C. S.; Hsieh, B. R.

In: Chemistry of Materials, Vol. 12, No. 9, 21.10.2000, p. 2741-2744.

Research output: Contribution to journalArticle

Li, A. K. ; Yang, S. S. ; Wan, Yanjun Jean ; Hsu, C. S. ; Hsieh, B. R. / Poly(2,3-diphenylphenylene vinylene) derivatives having liquid crystalline side groups. In: Chemistry of Materials. 2000 ; Vol. 12, No. 9. pp. 2741-2744.
@article{9922c5085ecd461c867c978a81697dc5,
title = "Poly(2,3-diphenylphenylene vinylene) derivatives having liquid crystalline side groups",
abstract = "Poly(2,3-diphenylphenylene vinylene) (DP-PPV) derivatives with pendant mesogene groups were synthesized. A biphenyoxyl or cyclohexylphenoxy moiety serves as the rigid mesogen core, a methylene chain as the spacer, and a alkyl or alkoxy group as the flexible terminal group. The optical properties of the polymers were investigated by UV-vis and photoluminescent spectroscopies. The polymer films emitted green-blue photoluminescence and electroluminescence. The phase transition behaviors of the polymers were characterized by a polarized optical microscope and a differential scanning calorimeter. The monomers did not show mesophases, while the polymers exhibited a nematic phase around 170-190 °C. The aligned films exhibited dichroism in absorption and emission spectra, implying that the polymers have potential for linearly polarized LED application.",
author = "Li, {A. K.} and Yang, {S. S.} and Wan, {Yanjun Jean} and Hsu, {C. S.} and Hsieh, {B. R.}",
year = "2000",
month = "10",
day = "21",
doi = "10.1021/cm000295f",
language = "English (US)",
volume = "12",
pages = "2741--2744",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "9",

}

TY - JOUR

T1 - Poly(2,3-diphenylphenylene vinylene) derivatives having liquid crystalline side groups

AU - Li, A. K.

AU - Yang, S. S.

AU - Wan, Yanjun Jean

AU - Hsu, C. S.

AU - Hsieh, B. R.

PY - 2000/10/21

Y1 - 2000/10/21

N2 - Poly(2,3-diphenylphenylene vinylene) (DP-PPV) derivatives with pendant mesogene groups were synthesized. A biphenyoxyl or cyclohexylphenoxy moiety serves as the rigid mesogen core, a methylene chain as the spacer, and a alkyl or alkoxy group as the flexible terminal group. The optical properties of the polymers were investigated by UV-vis and photoluminescent spectroscopies. The polymer films emitted green-blue photoluminescence and electroluminescence. The phase transition behaviors of the polymers were characterized by a polarized optical microscope and a differential scanning calorimeter. The monomers did not show mesophases, while the polymers exhibited a nematic phase around 170-190 °C. The aligned films exhibited dichroism in absorption and emission spectra, implying that the polymers have potential for linearly polarized LED application.

AB - Poly(2,3-diphenylphenylene vinylene) (DP-PPV) derivatives with pendant mesogene groups were synthesized. A biphenyoxyl or cyclohexylphenoxy moiety serves as the rigid mesogen core, a methylene chain as the spacer, and a alkyl or alkoxy group as the flexible terminal group. The optical properties of the polymers were investigated by UV-vis and photoluminescent spectroscopies. The polymer films emitted green-blue photoluminescence and electroluminescence. The phase transition behaviors of the polymers were characterized by a polarized optical microscope and a differential scanning calorimeter. The monomers did not show mesophases, while the polymers exhibited a nematic phase around 170-190 °C. The aligned films exhibited dichroism in absorption and emission spectra, implying that the polymers have potential for linearly polarized LED application.

UR - http://www.scopus.com/inward/record.url?scp=0033810304&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033810304&partnerID=8YFLogxK

U2 - 10.1021/cm000295f

DO - 10.1021/cm000295f

M3 - Article

AN - SCOPUS:0033810304

VL - 12

SP - 2741

EP - 2744

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 9

ER -