XPS studies of radiation grafted PTFE-g-polystyrene sulfonic acid membranes

Mohamed Mahmoud Nasef, Hamdani Saidi, Hussin Mohd Nor, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Structural investigations of PTFE-g-polystyrene sulfonic acid membranes prepared by radiation grafting of styrene onto PTFE were conducted by X-ray photo-electron spectroscopy (XPS). The analyzed materials included original PTFE film as a reference material, grafted film, and sulfonated membrane samples having various degrees of grafting. Interest is focused on C1s, F1s, O1s, and S2p of narrow XPS spectra as the basic elemental components of the membrane. The original PTFE film was found to undergo structural changes in terms of chemical composition and shifting in binding energy induced by incorporation of sulfonated polystyrene grafts, and the amount of such changes depends on the degree of grafting. The atomic ratio of F/C was found to decrease with the increase in the degree of grafting, while that for S/C and O/C were found to increase.

Original languageEnglish
Pages (from-to)336-349
Number of pages14
JournalJournal of Applied Polymer Science
Volume76
Issue number3
DOIs
Publication statusPublished - 2000

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Polytetrafluoroethylene
Polytetrafluoroethylenes
Polystyrenes
X ray photoelectron spectroscopy
Membranes
Radiation
Acids
Styrene
Binding energy
Grafts
polystyrene sulfonic acid
Chemical analysis

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

XPS studies of radiation grafted PTFE-g-polystyrene sulfonic acid membranes. / Nasef, Mohamed Mahmoud; Saidi, Hamdani; Nor, Hussin Mohd; Yarmo, Mohd. Ambar.

In: Journal of Applied Polymer Science, Vol. 76, No. 3, 2000, p. 336-349.

Research output: Contribution to journalArticle

Nasef, Mohamed Mahmoud ; Saidi, Hamdani ; Nor, Hussin Mohd ; Yarmo, Mohd. Ambar. / XPS studies of radiation grafted PTFE-g-polystyrene sulfonic acid membranes. In: Journal of Applied Polymer Science. 2000 ; Vol. 76, No. 3. pp. 336-349.
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