Microviscosity of an ion-conducting polymer probed by fluorescence depolarization and dielectric spectroscopy

Sangmin Jeon; Sung Chul Bae; Jeff Turner; Steve Granick

doi:10.1016/S0032-3861(02)00317-8

Microviscosity of an ion-conducting polymer probed by fluorescence depolarization and dielectric spectroscopy

Sangmin Jeon, Sung Chul Bae, Jeff Turner, Steve Granick

Materials Science and Engineering

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

Abstract

The local segmental motions of polypropylene oxide melt with variable amounts of added LiClO₄ salt (0.3-2.2 mol% per repeat unit) were studied using dielectric relaxation spectroscopy and single photon counting methods after two-photon excitation of an unattached fluorescent dye, rhodamine 123, embedded at low concentration within the polymer. The lithium ions serve as junctions between polymer chains and increase the bulk viscosity. The measured microviscosity contains information on the local environment of ClO^-₄ ions.

Original language	English (US)
Pages (from-to)	4651-4655
Number of pages	5
Journal	Polymer
Volume	43
Issue number	17
DOIs	https://doi.org/10.1016/S0032-3861(02)00317-8
State	Published - Jun 25 2002

Keywords

Dielectric spectroscopy
Fluorescence depolarization
Ion conducting polymer

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics

Online availability

10.1016/S0032-3861(02)00317-8

Library availability

Discover UIUC Full Text

Cite this

@article{d506b0b76b794dc5b7947fa4bb20d4fa,

title = "Microviscosity of an ion-conducting polymer probed by fluorescence depolarization and dielectric spectroscopy",

abstract = "The local segmental motions of polypropylene oxide melt with variable amounts of added LiClO4 salt (0.3-2.2 mol% per repeat unit) were studied using dielectric relaxation spectroscopy and single photon counting methods after two-photon excitation of an unattached fluorescent dye, rhodamine 123, embedded at low concentration within the polymer. The lithium ions serve as junctions between polymer chains and increase the bulk viscosity. The measured microviscosity contains information on the local environment of ClO-4 ions.",

keywords = "Dielectric spectroscopy, Fluorescence depolarization, Ion conducting polymer",

author = "Sangmin Jeon and Bae, {Sung Chul} and Jeff Turner and Steve Granick",

note = "Funding Information: This work was supported by the US Department of Energy, Division of Materials Science under Award No. DEFG02-91ER45439, through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana–Champaign.",

year = "2002",

month = jun,

day = "25",

doi = "10.1016/S0032-3861(02)00317-8",

language = "English (US)",

volume = "43",

pages = "4651--4655",

journal = "Polymer (United Kingdom)",

issn = "0032-3861",

publisher = "Elsevier BV",

number = "17",

}

TY - JOUR

T1 - Microviscosity of an ion-conducting polymer probed by fluorescence depolarization and dielectric spectroscopy

AU - Jeon, Sangmin

AU - Bae, Sung Chul

AU - Turner, Jeff

AU - Granick, Steve

N1 - Funding Information: This work was supported by the US Department of Energy, Division of Materials Science under Award No. DEFG02-91ER45439, through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana–Champaign.

PY - 2002/6/25

Y1 - 2002/6/25

N2 - The local segmental motions of polypropylene oxide melt with variable amounts of added LiClO4 salt (0.3-2.2 mol% per repeat unit) were studied using dielectric relaxation spectroscopy and single photon counting methods after two-photon excitation of an unattached fluorescent dye, rhodamine 123, embedded at low concentration within the polymer. The lithium ions serve as junctions between polymer chains and increase the bulk viscosity. The measured microviscosity contains information on the local environment of ClO-4 ions.

AB - The local segmental motions of polypropylene oxide melt with variable amounts of added LiClO4 salt (0.3-2.2 mol% per repeat unit) were studied using dielectric relaxation spectroscopy and single photon counting methods after two-photon excitation of an unattached fluorescent dye, rhodamine 123, embedded at low concentration within the polymer. The lithium ions serve as junctions between polymer chains and increase the bulk viscosity. The measured microviscosity contains information on the local environment of ClO-4 ions.

KW - Dielectric spectroscopy

KW - Fluorescence depolarization

KW - Ion conducting polymer

UR - http://www.scopus.com/inward/record.url?scp=0037172895&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037172895&partnerID=8YFLogxK

U2 - 10.1016/S0032-3861(02)00317-8

DO - 10.1016/S0032-3861(02)00317-8

M3 - Article

AN - SCOPUS:0037172895

SN - 0032-3861

VL - 43

SP - 4651

EP - 4655

JO - Polymer (United Kingdom)

JF - Polymer (United Kingdom)

IS - 17

ER -

Microviscosity of an ion-conducting polymer probed by fluorescence depolarization and dielectric spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this