Anomalous concentration effects of Zwitterionic telechelic polymer solutions in electric fields

David G. Bucknall

doi:10.1002/1521-3935(20020101)203:1<89::AID-MACP89>3.0.CO;2-0

Anomalous concentration effects of Zwitterionic telechelic polymer solutions in electric fields

David G. Bucknall^*

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

Transient electric birefringence (TEB) measurements have been made on a number of low molecular weight (4.8 × 10³, 14.4 × 10³ and 34.7 × 10³ g · mol^-1) α,ω-Zwitterionic telechelic polystyrene (ZT-PS) in dilute cyclohexanone solutions. Anomalous birefringence has been observed with a distinctive change in sign of the overall birefringence at a critical concentration, c*. From the analysis of the relaxation behaviour in terms of a bead-spring model chain dimensions and diffusion coefficients have been determined. These indicate that even at the lowest concentration, aggregation occurs with a transition to extended networks at c ≥ c*.

Original language	English
Pages (from-to)	89-99
Number of pages	11
Journal	Macromolecular Chemistry and Physics
Volume	203
Issue number	1
DOIs	https://doi.org/10.1002/1521-3935(20020101)203:1<89::AID-MACP89>3.0.CO;2-0
Publication status	Published - 9 Jan 2002

Keywords

Dynamics
Kerr birefringence
Orientation
Polystyrene
Zwitterionic telechelic

ASJC Scopus subject areas

Organic Chemistry
Physical and Theoretical Chemistry
Materials Chemistry
Polymers and Plastics

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10.1002/1521-3935(20020101)203:1<89::AID-MACP89>3.0.CO;2-0

Cite this

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title = "Anomalous concentration effects of Zwitterionic telechelic polymer solutions in electric fields",

abstract = "Transient electric birefringence (TEB) measurements have been made on a number of low molecular weight (4.8 {\texttimes} 103, 14.4 {\texttimes} 103 and 34.7 {\texttimes} 103 g · mol-1) α,ω-Zwitterionic telechelic polystyrene (ZT-PS) in dilute cyclohexanone solutions. Anomalous birefringence has been observed with a distinctive change in sign of the overall birefringence at a critical concentration, c*. From the analysis of the relaxation behaviour in terms of a bead-spring model chain dimensions and diffusion coefficients have been determined. These indicate that even at the lowest concentration, aggregation occurs with a transition to extended networks at c ≥ c*.",

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AB - Transient electric birefringence (TEB) measurements have been made on a number of low molecular weight (4.8 × 103, 14.4 × 103 and 34.7 × 103 g · mol-1) α,ω-Zwitterionic telechelic polystyrene (ZT-PS) in dilute cyclohexanone solutions. Anomalous birefringence has been observed with a distinctive change in sign of the overall birefringence at a critical concentration, c*. From the analysis of the relaxation behaviour in terms of a bead-spring model chain dimensions and diffusion coefficients have been determined. These indicate that even at the lowest concentration, aggregation occurs with a transition to extended networks at c ≥ c*.

KW - Dynamics

KW - Kerr birefringence

KW - Orientation

KW - Polystyrene

KW - Zwitterionic telechelic

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DO - 10.1002/1521-3935(20020101)203:1<89::AID-MACP89>3.0.CO;2-0

M3 - Article

AN - SCOPUS:0037045455

SN - 1022-1352

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EP - 99

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

IS - 1

ER -

Anomalous concentration effects of Zwitterionic telechelic polymer solutions in electric fields

Abstract

Keywords

ASJC Scopus subject areas

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