𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determining Initiator Efficiency in Radical Polymerization by Electrospray-Ionization Mass Spectrometry

✍ Scribed by Michael Buback; Holm Frauendorf; Fabian Günzler; Felix Huff; Philipp Vana

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
374 KB
Volume
210
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A method for measuring initiator efficiency in radical polymerization using ESI‐MS is presented. The method is based on the evaluation of relative MS peak intensities of polymer that has been initiated by a mixture of initiators, of which one serves as an internal reference. The method is quickly and easily performed and was found to be reproducible and robust. In polymerization of methyl methacrylate in solution, the efficiency of BTMHP at 80 °C was determined to be f~BTMHP~ = 0.57 ± 0.08, and the efficiency of DBPO at 100 °C was measured to be f~DBPO~ = 0.89 ± 0.08.

magnified image

📜 SIMILAR VOLUMES

Determination of micelle mass by electro
Determination of micelle mass by electrospray ionization mass spectrometry
✍ Daisuke Nohara; Takatomo Kajiura; Koji Takeda 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 110 KB 👁 1 views

## Abstract By electrospray ionization (ESI) mass spectrometry, micelle solutions of sodium cholate were investigated in detail in the presence and absence of ethanol. The average aggregation number could be evaluated from the spectra acquired under conditions where soft collisions adequate to meas

Chelation-Controlled Radical Chain React
Chelation-Controlled Radical Chain Reactions Studied by Electrospray Ionization Mass Spectrometry
✍ Sven Fürmeier; Jens Griep-Raming; Ahlke Hayen; Jürgen O. Metzger 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 185 KB 👁 2 views

## Abstract Electrospray ionization mass spectrometry (ESI‐MS) is a novel tool for the investigation of chemical reactions in solution and for the direct detection and identification of reactive intermediates. The tributyltin hydride mediated addition of __tert‐__butyl iodide to dimethyl 2‐cyclohex

Electrospray ionization mass spectrometr
Electrospray ionization mass spectrometry of 5-methyl-2′-deoxycytidine and its determination in urine by liquid chromatography/electrospray ionization tandem mass spectrometry
✍ Carlo Giorgio Zambonin; Francesco Palmisano 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 79 KB 👁 2 views

The behaviour of 5-methyl-2'-deoxycytidine (m 5 dCyd, claimed to be a potential marker for leukaemia) during the electrospray process was studied. In particular, considerations concerning the effect of solution chemistry (e.g. analyte concentration, pH, etc.) on electrospray ionization mass spectra

Determination of 8-Hydroxydeoxyguanosine
Determination of 8-Hydroxydeoxyguanosine in Biological Tissue by Liquid Chromatography/Electrospray Ionization-Mass Spectrometry/Mass Spectrometry
✍ Jose Serrano; Carlos M. Palmeira; Kendall B. Wallace; Douglas W. Kuehl 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 340 KB 👁 2 views

A method based on liquid chromatography (LC) combined with electrospray ionization tandem mass spectrometry for the analysis of the frequency of formation of 8-hydroxydeoxyguanosine (8OHdGuo), a biomarker of oxidative damage to DNA, has been developed. This analytical technique has the advantage ove