Coil-globule transition studies of sodium poly(styrene sulfonate) by dynamic light scattering

Ersin Serhatli; Müge Serhatli; Bahattin M. Baysal; Frank E. Karasz

doi:10.1016/S0032-3861(02)00431-7

Coil-globule transition studies of sodium poly(styrene sulfonate) by dynamic light scattering

Ersin Serhatli, Müge Serhatli, Bahattin M. Baysal^*, Frank E. Karasz

^*Corresponding author for this work

Department of Chemistry

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

11 Citations (Scopus)

Abstract

The coil-globule transition behavior of sodium poly(styrene sulfonate) (NaPSS) (M_W = 1.2 × 10⁶ g/mol) in 4.17 M aqueous NaCl solution has been studied by dynamic light scattering. The polymer dimensions show a smooth and continuous contraction below the reference temperature (18°C). The hydrodynamic radius (Rh) of NaPSS in this system was reduced from 13.1 nm (18°C) to 9.1 nm at 10°C. At the latter temperature the polymer segment volume fraction was calculated to be 0.58. The contraction for this and other NaPSS samples investigated in this study is somewhat limited because under these high ionic strength conditions the polymer chains already contracted as a result of the screening effect of the ions.

Original language	English
Pages (from-to)	5439-5445
Number of pages	7
Journal	Polymer
Volume	43
Issue number	20
DOIs	https://doi.org/10.1016/S0032-3861(02)00431-7
Publication status	Published - 12 Aug 2002

Funding

This work was supported by TUBITAK Marmara Research Center and the National Science Foundation (NSF Grant INT-9507751). F.E.K. and B.M.B. acknowledge support from AFOSR Grant 99-001, and TUBA-Turkish Academy of Sciences, respectively.

Funders	Funder number
TUBA-Turkish Academy of Sciences
TUBITAK Marmara Research Center
National Science Foundation	INT-9507751
Air Force Office of Scientific Research

Keywords

Coil-globule transition
Dynamic light scattering
Sodium poly(styrene sulfonate)

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10.1016/S0032-3861(02)00431-7

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abstract = "The coil-globule transition behavior of sodium poly(styrene sulfonate) (NaPSS) (MW = 1.2 × 106 g/mol) in 4.17 M aqueous NaCl solution has been studied by dynamic light scattering. The polymer dimensions show a smooth and continuous contraction below the reference temperature (18°C). The hydrodynamic radius (Rh) of NaPSS in this system was reduced from 13.1 nm (18°C) to 9.1 nm at 10°C. At the latter temperature the polymer segment volume fraction was calculated to be 0.58. The contraction for this and other NaPSS samples investigated in this study is somewhat limited because under these high ionic strength conditions the polymer chains already contracted as a result of the screening effect of the ions.",

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T1 - Coil-globule transition studies of sodium poly(styrene sulfonate) by dynamic light scattering

AU - Serhatli, Ersin

AU - Serhatli, Müge

AU - Baysal, Bahattin M.

AU - Karasz, Frank E.

PY - 2002/8/12

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N2 - The coil-globule transition behavior of sodium poly(styrene sulfonate) (NaPSS) (MW = 1.2 × 106 g/mol) in 4.17 M aqueous NaCl solution has been studied by dynamic light scattering. The polymer dimensions show a smooth and continuous contraction below the reference temperature (18°C). The hydrodynamic radius (Rh) of NaPSS in this system was reduced from 13.1 nm (18°C) to 9.1 nm at 10°C. At the latter temperature the polymer segment volume fraction was calculated to be 0.58. The contraction for this and other NaPSS samples investigated in this study is somewhat limited because under these high ionic strength conditions the polymer chains already contracted as a result of the screening effect of the ions.

AB - The coil-globule transition behavior of sodium poly(styrene sulfonate) (NaPSS) (MW = 1.2 × 106 g/mol) in 4.17 M aqueous NaCl solution has been studied by dynamic light scattering. The polymer dimensions show a smooth and continuous contraction below the reference temperature (18°C). The hydrodynamic radius (Rh) of NaPSS in this system was reduced from 13.1 nm (18°C) to 9.1 nm at 10°C. At the latter temperature the polymer segment volume fraction was calculated to be 0.58. The contraction for this and other NaPSS samples investigated in this study is somewhat limited because under these high ionic strength conditions the polymer chains already contracted as a result of the screening effect of the ions.

KW - Coil-globule transition

KW - Dynamic light scattering

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Coil-globule transition studies of sodium poly(styrene sulfonate) by dynamic light scattering

Abstract

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Keywords

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