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Mass spectrometry of poly(methyl methacrylate) (PMMA) prepared by atom transfer radical polymerization (ATRP) |
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| Authors: | Nikhil K Singha Steve Rimmer |
| Institution: | a Laboratory of Polymer Chemistry, Dutch Polymer Institute, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands b Department of Polymer Technology, The Netherlands Organization for Scientific Research (TNO), De Rondom 1, 5600 HE Eindhoven, The Netherlands c Department of Chemistry, The University of Sheffield, Sheffield, S3 7HF, UK |
| Abstract: | Poly(methyl methacrylate) (PMMA) was synthesized via atom transfer radical polymerization (ATRP). As a catalyst copper(I)thiocyanate (CuSCN) was used with N-n-pentyl-2-pyridylmethanimine as a ligand. Infrared spectroscopy and matrix assisted laser desorption ionization time-of-flight mass spectrometry were used to characterize the synthesized polymers. From this it was clear that at least to some extent thiocyanate was present as end groups of the PMMA chains. This observation is discussed in view of a phenomenon called halogen exchange, which has been reported before for bromine/chlorine exchange in ATRP. |
| Keywords: | ATRP MALDI-ToF-MS Pseudo-halide Halogen exchange |
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