The electron paramagnetic resonance (EPR) spectra obtained from radicals produced during the photopolymerization of multifunctional acrylic and methacrylic monomers have been interpreted by taking into account the EPR line-broadening due to dynamic exchange between two conformations of the beta-methylene groups and a spin-spin dipolar interaction between radicals trapped in rigid regions of the polymer. From H-1 matrix electron and nuclear double resonance (ENDOR) spectra the distance between the radical center and the surrounding shells of protons can be estimated.
ELECTRON-PARAMAGNETIC-RESONANCE (EPR) AND ELECTRON AND NUCLEAR DOUBLE-RESONANCE (ENDOR) CHARACTERIZATION OF RADICALS PRODUCED DURING THE PHOTOPOLYMERIZATION OF MULTIFUNCTIONAL (METH)ACRYLATE MONOMERS / E. SELLI, C. OLIVA. - In: MACROMOLECULAR CHEMISTRY AND PHYSICS. - ISSN 1022-1352. - 196:12(1995), pp. 4129-4138.
Titolo: | ELECTRON-PARAMAGNETIC-RESONANCE (EPR) AND ELECTRON AND NUCLEAR DOUBLE-RESONANCE (ENDOR) CHARACTERIZATION OF RADICALS PRODUCED DURING THE PHOTOPOLYMERIZATION OF MULTIFUNCTIONAL (METH)ACRYLATE MONOMERS |
Autori: | SELLI, ELENA (Primo) OLIVA, CESARE (Ultimo) |
Settore Scientifico Disciplinare: | Settore CHIM/02 - Chimica Fisica |
Data di pubblicazione: | 1995 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/macp.1995.021961220 |
Appare nelle tipologie: | 01 - Articolo su periodico |