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

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

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Prüfsumme: MD5:4d4ce2bc13757ac2358efc5ea93bf195

ROYO, Eva, Hans-Herbert BRINTZINGER, 2002. Mass spectrometry of polystyrene and polypropene ruthenium complexes : A new tool for polymer characterization. In: Journal of Organometallic Chemistry. 663(1-2), pp. 213-220. ISSN 0022-328X

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

Journal of Organometallic Chemistry ; 663 (2002), 1-2. - S. 213-220 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(C<sub>5</sub>H<sub>5</sub>)(NCCH<sub>3</sub>)<sub>3</sub>][PF<sub>6</sub>] (1a) with PS samples of numerical mass average M<sub>n</sub> 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<sup>+</sup> 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(C<sub>5</sub>H<sub>5</sub>)(NCCH<sub>3</sub>)<sub>3</sub>]<sup>+</sup> and [Ru(C<sub>5</sub>Me<sub>5</sub>)(NCCH<sub>3</sub>)<sub>3</sub>]<sup>+</sup> with 1,3-diphenylpropane and of (RuC<sub>5</sub>Me<sub>5</sub>)<sub>3</sub>H<sub>5</sub> with 1-eicosene were studied as models for the corresponding reactions with PS and PP, respectively. Mass spectrometry of polystyrene and polypropene ruthenium complexes : A new tool for polymer characterization Royo, Eva deposit-license 2002 Royo, Eva 2013-07-08T13:16:01Z eng Brintzinger, Hans-Herbert 2013-07-08T13:16:01Z Brintzinger, Hans-Herbert

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

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