1 April 2009 Quantitative measurement of the molecular-mass distribution in calix[4]resorcinarene molecular glass resists by mass spectrometry
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Abstract
The polydispersity in the degree of functionalization for two calix[4]resorcinarenes was determined by measuring, quantitatively, their molecular mass distribution with matrix-assisted laser desorption/ionization time of flight mass spectrometry. A mathematical method for polydisperse materials is described that creates a calibration curve to correct the ion intensities in the mass spectrum to give a more reliable molecular mass distribution. One calix[4]resorcinarene was found to give accurate molecular mass distributions with little correction, while another having a very similar molecular structure was found to exhibit strong over counting of the oligomers having a high degree of functionalization.
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W. E. Wallace, W. E. Wallace, K. M. Flynn, K. M. Flynn, C. M. Guttman, C. M. Guttman, D. L. VanderHart, D. L. VanderHart, V. M. Prabhu, V. M. Prabhu, A. De Silva, A. De Silva, N. M. Felix, N. M. Felix, C. K. Ober, C. K. Ober, "Quantitative measurement of the molecular-mass distribution in calix[4]resorcinarene molecular glass resists by mass spectrometry", Proc. SPIE 7273, Advances in Resist Materials and Processing Technology XXVI, 72732L (1 April 2009); doi: 10.1117/12.813680; https://doi.org/10.1117/12.813680
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