Dynamic processes of optically induced birefringence of azo compounds in amorphous polymers below Tg

O. K. Song; C. H. Wang; M. A. Pauley

doi:10.1021/ma9701649

Dynamic processes of optically induced birefringence of azo compounds in amorphous polymers below T_g

O. K. Song, C. H. Wang, M. A. Pauley

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

76 Scopus citations

Abstract

The growth and decay processes of the optically induced birefringence in an azobenzene-functionalized polymer, DR19FPOZ (full name given in the text), and in another azobenzene guest/host polymer system have been studied. The temperature dependence of the birefringence signal is studied, and possible mechanisms associated with the growth and decay segments of the signal are analyzed. Rate constants deduced from the optically induced birefringence signal are also investigated as a function of the laser excitation power and film thickness. The rate constants associated with the growth and decay processes and activation energies are obtained for the polymer system below the glass transition temperature.

Original language	English (US)
Pages (from-to)	6913-6919
Number of pages	7
Journal	Macromolecules
Volume	30
Issue number	22
DOIs	https://doi.org/10.1021/ma9701649
State	Published - Nov 3 1997
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1021/ma9701649

Cite this

@article{a7167e721de74320b4bb352cae293840,

title = "Dynamic processes of optically induced birefringence of azo compounds in amorphous polymers below Tg",

abstract = "The growth and decay processes of the optically induced birefringence in an azobenzene-functionalized polymer, DR19FPOZ (full name given in the text), and in another azobenzene guest/host polymer system have been studied. The temperature dependence of the birefringence signal is studied, and possible mechanisms associated with the growth and decay segments of the signal are analyzed. Rate constants deduced from the optically induced birefringence signal are also investigated as a function of the laser excitation power and film thickness. The rate constants associated with the growth and decay processes and activation energies are obtained for the polymer system below the glass transition temperature.",

author = "Song, {O. K.} and Wang, {C. H.} and Pauley, {M. A.}",

year = "1997",

month = nov,

day = "3",

doi = "10.1021/ma9701649",

language = "English (US)",

volume = "30",

pages = "6913--6919",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "22",

}

TY - JOUR

T1 - Dynamic processes of optically induced birefringence of azo compounds in amorphous polymers below Tg

AU - Song, O. K.

AU - Wang, C. H.

AU - Pauley, M. A.

PY - 1997/11/3

Y1 - 1997/11/3

N2 - The growth and decay processes of the optically induced birefringence in an azobenzene-functionalized polymer, DR19FPOZ (full name given in the text), and in another azobenzene guest/host polymer system have been studied. The temperature dependence of the birefringence signal is studied, and possible mechanisms associated with the growth and decay segments of the signal are analyzed. Rate constants deduced from the optically induced birefringence signal are also investigated as a function of the laser excitation power and film thickness. The rate constants associated with the growth and decay processes and activation energies are obtained for the polymer system below the glass transition temperature.

AB - The growth and decay processes of the optically induced birefringence in an azobenzene-functionalized polymer, DR19FPOZ (full name given in the text), and in another azobenzene guest/host polymer system have been studied. The temperature dependence of the birefringence signal is studied, and possible mechanisms associated with the growth and decay segments of the signal are analyzed. Rate constants deduced from the optically induced birefringence signal are also investigated as a function of the laser excitation power and film thickness. The rate constants associated with the growth and decay processes and activation energies are obtained for the polymer system below the glass transition temperature.

UR - http://www.scopus.com/inward/record.url?scp=0031551645&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031551645&partnerID=8YFLogxK

U2 - 10.1021/ma9701649

DO - 10.1021/ma9701649

M3 - Article

AN - SCOPUS:0031551645

SN - 0024-9297

VL - 30

SP - 6913

EP - 6919

JO - Macromolecules

JF - Macromolecules

IS - 22

ER -

Dynamic processes of optically induced birefringence of azo compounds in amorphous polymers below T_g

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this