A Study of the Oxidation of Two Aromatic Polyimide Fluoropolymers Containing Phenylphosphine Oxide by a Water Plasma and γ-Radiolysis in Air-Reference-Cited by-同舟云学术

A Study of the Oxidation of Two Aromatic Polyimide Fluoropolymers Containing Phenylphosphine Oxide by a Water Plasma and γ-Radiolysis in Air

Published:2001-03 Issue:1 Volume:13 Page:55-65
ISSN:0954-0083
Container-title:High Performance Polymers
language:en
Short-container-title:High Performance Polymers

Author:

Alexander Mark A,Hill David J T¹,Connell John W,Watson Kent A²

Affiliation:

1. Polymer Materials and Radiation Group, Department of Chemistry, The University of Queensland, Brisbane, Australia 4072

2. National Aeronautics and Space Administration, Langley Research Center, Hampton, VA 23681-2199, USA

Abstract

The oxidation of two fluorinated polyimides containing phenylphosphine oxide units, TOR-RC and TOR-RC ODPA, have been studied at 300 K for treatment by a water plasma and γ-radiolysis in air. The changes in the O 1s/C 1s ratios obtained from x-ray photoelectron spectroscopy (XPS) analysis showed that for exposure to the water plasma the ratio increases at short exposure times and then levels to a constant value. Evidence for the formation of phosphate species was also obtained from the XPS analyses. Similar observations were made for γ-radiolysis of the polymers in air. The polymers containing phenylphosphine oxide were found to be more resistant to oxidation in the water plasma than Kapton®. Radiolysis of the polymers in air to high doses were also accompanied by a red shift in the visible absorption spectra.

Publisher

SAGE Publications

Subject

Materials Chemistry,Organic Chemistry,Polymers and Plastics

Link

http://journals.sagepub.com/doi/pdf/10.1088/0954-0083/13/1/306

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