Mahon, Andrea, Kemp, T. J. (Terence James), Varney, Julie E. and Derrick, Peter J. . (1998) Ions derived from linear polysulfide oligomers using matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry. Polymer, Vol.39 (No.25). pp. 6213-6217. ISSN 0032-3861

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Abstract

Attempts to produce detectable levels of ions from oligomers of linear polysulfides (LPs) H(SC2H4O-CH2OC2H4S)(n)H (n up to 24) by matrix-assisted laser desorption/ionisation time-of-flight (MALDI-TOF) mass spectrometry failed with all common matrix/cation combinations except 9-nitroanthracene containing silver trifluoracetate. The latter matrix yielded a series of species assigned to Ag(SC2H4OCH2OC2H4S)(n) representing the loss of two thiol hydrogen atoms, together with smaller quantities of other series Ag(SC2H4O-CH2OC2H4S)(n)(C2H4OCH2OC2H4S) and Ag(SC2H4OCH2OC2H4S)(n)(SC2H4OC2H4OCH2OC2H4S) when a conventional LP was utilised. Other LP structures were examined and these also gave argentated species; one LP (designated ZL-2264) gave a spectrum featuring silver isotope splitting of all of its peaks. At higher laser powers, or with high silver salt concentrations, or after extensive ageing of samples prior to laser irradiation, a totally new series of peaks emerged attributed to [(Ag2S)(n)Ag](+) with n reaching 11, i.e. containing 23 silver atoms.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Science > Chemistry
Journal or Publication Title:	Polymer
Publisher:	Elsevier Science BV
ISSN:	0032-3861
Date:	December 1998
Volume:	Vol.39
Number:	No.25
Number of Pages:	5
Page Range:	pp. 6213-6217
Identification Number:	10.1016/S0032-3861(98)00160-8
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/15351

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