Determination of end groups in poly(methylmethacrylate peroxide) by fast atom bombardment mass spectrometry and IR spectroscopy

Reversible Addition-Fragmentation Chain Transfer (RAFT) Polymerization of Vinyl Monomers Initiated by Poly(methyl methacrylate) Peroxide

“…4. The spectra unanimously showed broad absorption at 3200-3500 cm -1 , which was ascribed to the vibration of -OH or -OOH at the end of PMMAP [34,35]. The results from 1 H NMR and FT-IR confirmed sufficiently the initiating behavior of PMMAP in the polymerization.…”

para-Substituted Poly(styrene peroxide)s: Synthesis, Characterization, Thermal Reactivities, and Chain Dynamics Studies in Solution

“…The formation of these end groups via various chain transfer mechanisms has been reported in the literature. [20,21] The 1 H-NMR spectra show signals corresponding to methylene and methine protons shifted downfield due to two oxygen atoms directly bonded to it. For the same reason 13 C-NMR spectra also show considerable downfield shift for the backbone carbon atoms.…”

Synthesis, spectral characterization, and thermochemical studies of poly(phenyl methacrylate peroxide)

“…The formation of these end groups via various chain transfer mechanism is known. 27 The very intense band appearing at 1744 cm Ϫ1 is assigned to the carbonyl groups present in the repeat unit. Other carbonyl groups present in the different end groups also show infrared absorption in this region, and hence they are not distinguishable.…”

“…As in the case of other vinyl polyperoxides, here, too, the molecular weight and the end groups are determined by chain transfer reactions. In PPMAP, as in poly(methyl methacrylate peroxide), 27 …”

“…OCHAC(CH 3 )(COOC 6 H 5 ), as in poly(␣-methylstyrene peroxide). 27,28 Based on the above discussion, the general structure of PPMAP can be given as…”