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Mass spectrometry of polystyrene and polypropene ruthenium complexes : A new tool for polymer characterization

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2002

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Journal of Organometallic Chemistry. 2002, 663(1-2), pp. 213-220. ISSN 0022-328X. Available under: doi: 10.1016/S0022-328X(02)01770-9

Zusammenfassung

The use of organometallic fragments as cationization reagents for matrix-assisted laser-desorption-ionization time-of-flight mass spectrometry (MALDI-TOF-MS) of polystyrene (PS) and polypropene (PP) is reported. Reaction of [Ru(C5H5)(NCCH3)3][PF6] (1a) with PS samples of numerical mass average Mn 1430–135 000 in a ratio [Ru]/[PS]=1/1 to 3/1 favours effective ionization of the polymer by MALDI-MS techniques and leads to an increase in signal intensity over that obtained by use of Ag+ salts. PP samples of Mn 2700 and 6100 are ionized after reaction with the trinuclear ruthenium pentahydride derivative (RuC5Me5)3H5, thus affording the first observation of MALDI-MS signals for this polymer. Reactions of the cations [Ru(C5H5)(NCCH3)3]+ and [Ru(C5Me5)(NCCH3)3]+ with 1,3-diphenylpropane and of (RuC5Me5)3H5 with 1-eicosene were studied as models for the corresponding reactions with PS and PP, respectively.

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ISO 690ROYO, Eva, Hans-Herbert BRINTZINGER, 2002. Mass spectrometry of polystyrene and polypropene ruthenium complexes : A new tool for polymer characterization. In: Journal of Organometallic Chemistry. 2002, 663(1-2), pp. 213-220. ISSN 0022-328X. Available under: doi: 10.1016/S0022-328X(02)01770-9
BibTex
@article{Royo2002spect-23856,
  year={2002},
  doi={10.1016/S0022-328X(02)01770-9},
  title={Mass spectrometry of polystyrene and polypropene ruthenium complexes : A new tool for polymer characterization},
  number={1-2},
  volume={663},
  issn={0022-328X},
  journal={Journal of Organometallic Chemistry},
  pages={213--220},
  author={Royo, Eva and Brintzinger, Hans-Herbert}
}
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