A study of interpenetration using fluorescence quenching of chromophore-labelled polymers

William H. Schwimmer; John M. Torkelson

doi:10.1016/0032-3861(87)90384-3

A study of interpenetration using fluorescence quenching of chromophore-labelled polymers

William H. Schwimmer^*, John M. Torkelson

^*Corresponding author for this work

Chemical and Biological Engineering

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

Abstract

Fluorescence quenching was used to investigate the onset and extent of overlap and interpenetration in poly(vinyl methyl ether) (PVME) solutions using polystyrene with a dilute level of anthracene labelling (APS) as a probe. A low, constant concentration of APS was added to solutions varying in PVME concentration. The critical overlap concentration, c*, was taken to be the PVME concentration at which quenching of the probe anthracene-labelled polymer molecules commenced. Variations in probe molecular weight and concentration produced no significant changes in c* or in the rate of decrease in fluorescence intensity above c*, lending credibility to the idea that the APS is simply probing the PVME system. The values of c* [η] from these experiments were found to lie in the range of 0.87-1.7 which agrees with the results from previous studies. The sensitivity of this method to small differences in solvent quality for PVME was also investigated.

Original language	English (US)
Pages (from-to)	2257-2261
Number of pages	5
Journal	Polymer
Volume	28
Issue number	13
DOIs	https://doi.org/10.1016/0032-3861(87)90384-3
State	Published - Dec 1987

Keywords

c*
fluorescence quenching
interpenetration
poly(vinyl methyl ether)
polystyrene

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/0032-3861(87)90384-3

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@article{ad7ebd1bb2844bbe85c41b4ded5a481d,

title = "A study of interpenetration using fluorescence quenching of chromophore-labelled polymers",

abstract = "Fluorescence quenching was used to investigate the onset and extent of overlap and interpenetration in poly(vinyl methyl ether) (PVME) solutions using polystyrene with a dilute level of anthracene labelling (APS) as a probe. A low, constant concentration of APS was added to solutions varying in PVME concentration. The critical overlap concentration, c*, was taken to be the PVME concentration at which quenching of the probe anthracene-labelled polymer molecules commenced. Variations in probe molecular weight and concentration produced no significant changes in c* or in the rate of decrease in fluorescence intensity above c*, lending credibility to the idea that the APS is simply probing the PVME system. The values of c* [η] from these experiments were found to lie in the range of 0.87-1.7 which agrees with the results from previous studies. The sensitivity of this method to small differences in solvent quality for PVME was also investigated.",

keywords = "c*, fluorescence quenching, interpenetration, poly(vinyl methyl ether), polystyrene",

author = "Schwimmer, {William H.} and Torkelson, {John M.}",

note = "Funding Information: We gratefully acknowledge the support of the National Science Foundation and the Shell Foundation (fellowship to WHS). We also thank Jeff Byars and Dave Ylitalo for discussion and assistance in these experiments.",

year = "1987",

month = dec,

doi = "10.1016/0032-3861(87)90384-3",

language = "English (US)",

volume = "28",

pages = "2257--2261",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier BV",

number = "13",

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TY - JOUR

T1 - A study of interpenetration using fluorescence quenching of chromophore-labelled polymers

AU - Schwimmer, William H.

AU - Torkelson, John M.

N1 - Funding Information: We gratefully acknowledge the support of the National Science Foundation and the Shell Foundation (fellowship to WHS). We also thank Jeff Byars and Dave Ylitalo for discussion and assistance in these experiments.

PY - 1987/12

Y1 - 1987/12

N2 - Fluorescence quenching was used to investigate the onset and extent of overlap and interpenetration in poly(vinyl methyl ether) (PVME) solutions using polystyrene with a dilute level of anthracene labelling (APS) as a probe. A low, constant concentration of APS was added to solutions varying in PVME concentration. The critical overlap concentration, c*, was taken to be the PVME concentration at which quenching of the probe anthracene-labelled polymer molecules commenced. Variations in probe molecular weight and concentration produced no significant changes in c* or in the rate of decrease in fluorescence intensity above c*, lending credibility to the idea that the APS is simply probing the PVME system. The values of c* [η] from these experiments were found to lie in the range of 0.87-1.7 which agrees with the results from previous studies. The sensitivity of this method to small differences in solvent quality for PVME was also investigated.

AB - Fluorescence quenching was used to investigate the onset and extent of overlap and interpenetration in poly(vinyl methyl ether) (PVME) solutions using polystyrene with a dilute level of anthracene labelling (APS) as a probe. A low, constant concentration of APS was added to solutions varying in PVME concentration. The critical overlap concentration, c*, was taken to be the PVME concentration at which quenching of the probe anthracene-labelled polymer molecules commenced. Variations in probe molecular weight and concentration produced no significant changes in c* or in the rate of decrease in fluorescence intensity above c*, lending credibility to the idea that the APS is simply probing the PVME system. The values of c* [η] from these experiments were found to lie in the range of 0.87-1.7 which agrees with the results from previous studies. The sensitivity of this method to small differences in solvent quality for PVME was also investigated.

KW - c

KW - fluorescence quenching

KW - interpenetration

KW - poly(vinyl methyl ether)

KW - polystyrene

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UR - http://www.scopus.com/inward/citedby.url?scp=0023541936&partnerID=8YFLogxK

U2 - 10.1016/0032-3861(87)90384-3

DO - 10.1016/0032-3861(87)90384-3

M3 - Article

AN - SCOPUS:0023541936

SN - 0032-3861

VL - 28

SP - 2257

EP - 2261

JO - Polymer

JF - Polymer

IS - 13

ER -

A study of interpenetration using fluorescence quenching of chromophore-labelled polymers

Abstract

Keywords

ASJC Scopus subject areas

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