Molecular weight dependence of chain conformation and counterion dissociation of poly(xylylene tetrahydrothiophenium chloride) in the salt-free semidilute aqueous solutions

Hong Long Cheng; King Fu Lin

doi:10.1021/la011858k

Molecular weight dependence of chain conformation and counterion dissociation of poly(xylylene tetrahydrothiophenium chloride) in the salt-free semidilute aqueous solutions

Hong Long Cheng, King Fu Lin

Department of Photonics

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

9 Citations (Scopus)

Abstract

The chain conformations of poly(xylylene tetrahydrothiophenium chloride) (PXT) in the salt-free semidilute aqueous solutions, estimated from the double-logarithmic plots of reduced viscosity vs segmental concentrations, were found to be more extended when the molecular weight or chain length was decreased. The dissociation extent of counterions from the PXT chains estimated from the ionic conductivity measurements was also increased. Besides, when the molecular weight was over 150 000 g/mol, the chain conformations were influenced more by the chain length than the counterion dissociation.

Original language	English
Pages (from-to)	7287-7290
Number of pages	4
Journal	Langmuir
Volume	18
Issue number	20
DOIs	https://doi.org/10.1021/la011858k
Publication status	Published - 2002 Oct 1

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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title = "Molecular weight dependence of chain conformation and counterion dissociation of poly(xylylene tetrahydrothiophenium chloride) in the salt-free semidilute aqueous solutions",

abstract = "The chain conformations of poly(xylylene tetrahydrothiophenium chloride) (PXT) in the salt-free semidilute aqueous solutions, estimated from the double-logarithmic plots of reduced viscosity vs segmental concentrations, were found to be more extended when the molecular weight or chain length was decreased. The dissociation extent of counterions from the PXT chains estimated from the ionic conductivity measurements was also increased. Besides, when the molecular weight was over 150 000 g/mol, the chain conformations were influenced more by the chain length than the counterion dissociation.",

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AU - Lin, King Fu

PY - 2002/10/1

Y1 - 2002/10/1

N2 - The chain conformations of poly(xylylene tetrahydrothiophenium chloride) (PXT) in the salt-free semidilute aqueous solutions, estimated from the double-logarithmic plots of reduced viscosity vs segmental concentrations, were found to be more extended when the molecular weight or chain length was decreased. The dissociation extent of counterions from the PXT chains estimated from the ionic conductivity measurements was also increased. Besides, when the molecular weight was over 150 000 g/mol, the chain conformations were influenced more by the chain length than the counterion dissociation.

AB - The chain conformations of poly(xylylene tetrahydrothiophenium chloride) (PXT) in the salt-free semidilute aqueous solutions, estimated from the double-logarithmic plots of reduced viscosity vs segmental concentrations, were found to be more extended when the molecular weight or chain length was decreased. The dissociation extent of counterions from the PXT chains estimated from the ionic conductivity measurements was also increased. Besides, when the molecular weight was over 150 000 g/mol, the chain conformations were influenced more by the chain length than the counterion dissociation.

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IS - 20

ER -

Molecular weight dependence of chain conformation and counterion dissociation of poly(xylylene tetrahydrothiophenium chloride) in the salt-free semidilute aqueous solutions

Abstract

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