Surface characterisation of ultraviolet-ozone treated PET using atomic force microscopy and X-ray photoelectron spectroscopy

C. Ton-That, D. O. H. Teare, P. A. Campbell, R. H. Bradley

Research output: Contribution to journalConference article

66 Citations (Scopus)

Abstract

The effects of ultraviolet-ozone (UVO) oxidation of polyethyleneterephthalate (PET) surfaces have been studied using atomic force microscopy and X-ray photoelectron spectroscopy. Surface oxygen increases from 26 at.% (untreated) to 37 at.% for the most oxidised surfaces produced and an increase in mean surface roughness and grain size is also observed. The larger grains appear to result from the formation of low molecular weight oxidised species by PET chain scission at the ester group and the material formed is therefore COOH/COOR rich. These species are mobile on the polymer surface and coalesce to form 200 nm grains which can be partially removed by water washing. The surface beneath is still rougher and more highly oxidised than untreated PET but the increase in stable oxygen is due to the formation of COH/COR groups.

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Ozone
ozone
Atomic force microscopy
X ray photoelectron spectroscopy
photoelectron spectroscopy
atomic force microscopy
x rays
Oxygen
washing
oxygen
low molecular weights
Washing
esters
cleavage
Esters
Polymers
surface roughness
grain size
Surface roughness
Molecular weight

Cite this

@article{2b78e352d6634a52ac73354ed6148bd6,
title = "Surface characterisation of ultraviolet-ozone treated PET using atomic force microscopy and X-ray photoelectron spectroscopy",
abstract = "The effects of ultraviolet-ozone (UVO) oxidation of polyethyleneterephthalate (PET) surfaces have been studied using atomic force microscopy and X-ray photoelectron spectroscopy. Surface oxygen increases from 26 at.{\%} (untreated) to 37 at.{\%} for the most oxidised surfaces produced and an increase in mean surface roughness and grain size is also observed. The larger grains appear to result from the formation of low molecular weight oxidised species by PET chain scission at the ester group and the material formed is therefore COOH/COOR rich. These species are mobile on the polymer surface and coalesce to form 200 nm grains which can be partially removed by water washing. The surface beneath is still rougher and more highly oxidised than untreated PET but the increase in stable oxygen is due to the formation of COH/COR groups.",
author = "C. Ton-That and Teare, {D. O. H.} and Campbell, {P. A.} and Bradley, {R. H.}",
year = "1999",
month = "8",
day = "2",
doi = "10.1016/S0039-6028(99)00155-7",
language = "English",
volume = "433",
pages = "278--282",
journal = "Surface Science",
issn = "1879-2758",
publisher = "Elsevier",

}

Surface characterisation of ultraviolet-ozone treated PET using atomic force microscopy and X-ray photoelectron spectroscopy. / Ton-That, C.; Teare, D. O. H.; Campbell, P. A.; Bradley, R. H.

In: Surface Science, Vol. 433, 02.08.1999, p. 278-282.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Surface characterisation of ultraviolet-ozone treated PET using atomic force microscopy and X-ray photoelectron spectroscopy

AU - Ton-That, C.

AU - Teare, D. O. H.

AU - Campbell, P. A.

AU - Bradley, R. H.

PY - 1999/8/2

Y1 - 1999/8/2

N2 - The effects of ultraviolet-ozone (UVO) oxidation of polyethyleneterephthalate (PET) surfaces have been studied using atomic force microscopy and X-ray photoelectron spectroscopy. Surface oxygen increases from 26 at.% (untreated) to 37 at.% for the most oxidised surfaces produced and an increase in mean surface roughness and grain size is also observed. The larger grains appear to result from the formation of low molecular weight oxidised species by PET chain scission at the ester group and the material formed is therefore COOH/COOR rich. These species are mobile on the polymer surface and coalesce to form 200 nm grains which can be partially removed by water washing. The surface beneath is still rougher and more highly oxidised than untreated PET but the increase in stable oxygen is due to the formation of COH/COR groups.

AB - The effects of ultraviolet-ozone (UVO) oxidation of polyethyleneterephthalate (PET) surfaces have been studied using atomic force microscopy and X-ray photoelectron spectroscopy. Surface oxygen increases from 26 at.% (untreated) to 37 at.% for the most oxidised surfaces produced and an increase in mean surface roughness and grain size is also observed. The larger grains appear to result from the formation of low molecular weight oxidised species by PET chain scission at the ester group and the material formed is therefore COOH/COOR rich. These species are mobile on the polymer surface and coalesce to form 200 nm grains which can be partially removed by water washing. The surface beneath is still rougher and more highly oxidised than untreated PET but the increase in stable oxygen is due to the formation of COH/COR groups.

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U2 - 10.1016/S0039-6028(99)00155-7

DO - 10.1016/S0039-6028(99)00155-7

M3 - Conference article

AN - SCOPUS:0033311309

VL - 433

SP - 278

EP - 282

JO - Surface Science

JF - Surface Science

SN - 1879-2758

ER -