ELECTRON-PARAMAGNETIC-RESONANCE (EPR) AND ELECTRON AND NUCLEAR DOUBLE-RESONANCE (ENDOR) CHARACTERIZATION OF RADICALS PRODUCED DURING THE PHOTOPOLYMERIZATION OF MULTIFUNCTIONAL (METH)ACRYLATE MONOMERS

Authors
SELLI E OLIVA C
Citation
E. Selli et C. Oliva, ELECTRON-PARAMAGNETIC-RESONANCE (EPR) AND ELECTRON AND NUCLEAR DOUBLE-RESONANCE (ENDOR) CHARACTERIZATION OF RADICALS PRODUCED DURING THE PHOTOPOLYMERIZATION OF MULTIFUNCTIONAL (METH)ACRYLATE MONOMERS, Macromolecular chemistry and physics, 196(12), 1995, pp. 4129-4138
Citations number
28
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular chemistry and physics → ACNP
ISSN journal
10221352
Volume
196
Issue
12
Year of publication
1995
Pages
4129 - 4138
Database
ISI
SICI code
1022-1352(1995)196:12<4129:E(AEAN>2.0.ZU;2-0
Abstract
The electron paramagnetic resonance (EPR) spectra obtained from radica ls 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 conformati ons of the beta-methylene groups and a spin-spin dipolar interaction b etween radicals trapped in rigid regions of the polymer. From H-1 matr ix electron and nuclear double resonance (ENDOR) spectra the distance between the radical center and the surrounding shells of protons can b e estimated.