Abstract
The rotational relaxation time (τrot) of a fluorescent molecule, coumarin 153 (C153), dispersed in different rubbery polymers is characterized by time-resolved fluorescence anisotropy measurement, and an attempt is made to quantitatively combine it with the segmental relaxation time (τseg) of the corresponding matrix polymer obtained by dielectric relaxation spectroscopy. This study here demonstrates that τseg extrapolated to higher temperatures using the Vogel–Fulcher–Tammann law can be superimposed on τrot, resulting in a single curve. This behavior is common for polymers with different glass transition temperatures such as polyisoprene and acrylonitrile/butadiene copolymer, implying that the rotational dynamics of C153 is a useful tool for the characterization of polymer dynamics.
| Original language | English |
|---|---|
| Article number | 1700329 |
| Journal | Macromolecular Chemistry and Physics |
| Volume | 219 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Feb 1 2018 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry
Cite this
Rotational Dynamics of a Probe in Rubbery Polymers Characterized by Time-Resolved Fluorescence Anisotropy Measurement. / Nguyen, Hung K.; Konomi, Asuka; Sugimoto, Shin; Inutsuka, Manabu; Kawaguchi, Daisuke; Tanaka, Keiji.
In: Macromolecular Chemistry and Physics, Vol. 219, No. 3, 1700329, 01.02.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Rotational Dynamics of a Probe in Rubbery Polymers Characterized by Time-Resolved Fluorescence Anisotropy Measurement
AU - Nguyen, Hung K.
AU - Konomi, Asuka
AU - Sugimoto, Shin
AU - Inutsuka, Manabu
AU - Kawaguchi, Daisuke
AU - Tanaka, Keiji
PY - 2018/2/1
Y1 - 2018/2/1
N2 - The rotational relaxation time (τrot) of a fluorescent molecule, coumarin 153 (C153), dispersed in different rubbery polymers is characterized by time-resolved fluorescence anisotropy measurement, and an attempt is made to quantitatively combine it with the segmental relaxation time (τseg) of the corresponding matrix polymer obtained by dielectric relaxation spectroscopy. This study here demonstrates that τseg extrapolated to higher temperatures using the Vogel–Fulcher–Tammann law can be superimposed on τrot, resulting in a single curve. This behavior is common for polymers with different glass transition temperatures such as polyisoprene and acrylonitrile/butadiene copolymer, implying that the rotational dynamics of C153 is a useful tool for the characterization of polymer dynamics.
AB - The rotational relaxation time (τrot) of a fluorescent molecule, coumarin 153 (C153), dispersed in different rubbery polymers is characterized by time-resolved fluorescence anisotropy measurement, and an attempt is made to quantitatively combine it with the segmental relaxation time (τseg) of the corresponding matrix polymer obtained by dielectric relaxation spectroscopy. This study here demonstrates that τseg extrapolated to higher temperatures using the Vogel–Fulcher–Tammann law can be superimposed on τrot, resulting in a single curve. This behavior is common for polymers with different glass transition temperatures such as polyisoprene and acrylonitrile/butadiene copolymer, implying that the rotational dynamics of C153 is a useful tool for the characterization of polymer dynamics.
UR - http://www.scopus.com/inward/record.url?scp=85041437193&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041437193&partnerID=8YFLogxK
U2 - 10.1002/macp.201700329
DO - 10.1002/macp.201700329
M3 - Article
AN - SCOPUS:85041437193
VL - 219
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
SN - 1022-1352
IS - 3
M1 - 1700329
ER -