Structural analysis of linear PEEK via MALDI-TOF mass spectrometry

Jonathan M. Behrendt; Michael Benstead; Adam Chaplin; Brian Wilson; Michael L. Turner

doi:10.1021/ma201580d

Structural analysis of linear PEEK via MALDI-TOF mass spectrometry

Jonathan M. Behrendt, Michael Benstead, Adam Chaplin, Brian Wilson, Michael L. Turner

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

Abstract

A study was conducted to demonstrate a procedure under which unmodified poly(ether ether ketone) (PEEK) was characterized directly and unambiguously by MALDI-TOF mass spectrometry. All mass spectra obtained by this method clearly displayed the repeat unit of PEEK and the mass of the two polymer end-groups was calculated as a result. A series of PEEK oligomers was synthesized by the reaction of 4,4'-difluorobenzophenone (BDF) and hydroquinone (HQ) in the presence of a carbonate base to demonstrate the effectiveness of the technique. The MALDI-TOF mass spectrum of oligomer showed the presence of a secondary polymeric series with an m/z of 1196, 1485, 1774, 2062, and 2351. The presence of this secondary species was attributed to the reaction with an excess of BDF without reaching completion. The best mass spectra were obtained using dithranol as the matrix and using the mass spectrometer in linear mode.

Original language	English
Pages (from-to)	9054-9056
Number of pages	2
Journal	Macromolecules
Volume	44
Issue number	22
DOIs	https://doi.org/10.1021/ma201580d
Publication status	Published - 22 Nov 2011

Keywords

linear PEEK MALDITOF mass spectrometry

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10.1021/ma201580d

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title = "Structural analysis of linear PEEK via MALDI-TOF mass spectrometry",

abstract = "A study was conducted to demonstrate a procedure under which unmodified poly(ether ether ketone) (PEEK) was characterized directly and unambiguously by MALDI-TOF mass spectrometry. All mass spectra obtained by this method clearly displayed the repeat unit of PEEK and the mass of the two polymer end-groups was calculated as a result. A series of PEEK oligomers was synthesized by the reaction of 4,4'-difluorobenzophenone (BDF) and hydroquinone (HQ) in the presence of a carbonate base to demonstrate the effectiveness of the technique. The MALDI-TOF mass spectrum of oligomer showed the presence of a secondary polymeric series with an m/z of 1196, 1485, 1774, 2062, and 2351. The presence of this secondary species was attributed to the reaction with an excess of BDF without reaching completion. The best mass spectra were obtained using dithranol as the matrix and using the mass spectrometer in linear mode.",

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T1 - Structural analysis of linear PEEK via MALDI-TOF mass spectrometry

AU - Behrendt, Jonathan M.

AU - Benstead, Michael

AU - Chaplin, Adam

AU - Wilson, Brian

AU - Turner, Michael L.

PY - 2011/11/22

Y1 - 2011/11/22

N2 - A study was conducted to demonstrate a procedure under which unmodified poly(ether ether ketone) (PEEK) was characterized directly and unambiguously by MALDI-TOF mass spectrometry. All mass spectra obtained by this method clearly displayed the repeat unit of PEEK and the mass of the two polymer end-groups was calculated as a result. A series of PEEK oligomers was synthesized by the reaction of 4,4'-difluorobenzophenone (BDF) and hydroquinone (HQ) in the presence of a carbonate base to demonstrate the effectiveness of the technique. The MALDI-TOF mass spectrum of oligomer showed the presence of a secondary polymeric series with an m/z of 1196, 1485, 1774, 2062, and 2351. The presence of this secondary species was attributed to the reaction with an excess of BDF without reaching completion. The best mass spectra were obtained using dithranol as the matrix and using the mass spectrometer in linear mode.

AB - A study was conducted to demonstrate a procedure under which unmodified poly(ether ether ketone) (PEEK) was characterized directly and unambiguously by MALDI-TOF mass spectrometry. All mass spectra obtained by this method clearly displayed the repeat unit of PEEK and the mass of the two polymer end-groups was calculated as a result. A series of PEEK oligomers was synthesized by the reaction of 4,4'-difluorobenzophenone (BDF) and hydroquinone (HQ) in the presence of a carbonate base to demonstrate the effectiveness of the technique. The MALDI-TOF mass spectrum of oligomer showed the presence of a secondary polymeric series with an m/z of 1196, 1485, 1774, 2062, and 2351. The presence of this secondary species was attributed to the reaction with an excess of BDF without reaching completion. The best mass spectra were obtained using dithranol as the matrix and using the mass spectrometer in linear mode.

KW - linear PEEK MALDITOF mass spectrometry

U2 - 10.1021/ma201580d

DO - 10.1021/ma201580d

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SN - 0024-9297

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SP - 9054

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JO - Macromolecules

JF - Macromolecules

IS - 22

ER -

Structural analysis of linear PEEK via MALDI-TOF mass spectrometry

Abstract

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