Electron Spin Resonance Spin Trapping Technique: Application to the Cleavage Process of Photoinitiators | Zendy

Criqui Adrien | Zendy; Lalevée Jacques | Zendy; Allonas Xavier | Zendy; Fouassier JeanPierre | Zendy

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Electron Spin Resonance Spin Trapping Technique: Application to the Cleavage Process of Photoinitiators

Author(s) -

Criqui Adrien,

Lalevée Jacques,

Allonas Xavier,

Fouassier JeanPierre

Publication year - 2008

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.200800303

Subject(s) - spin trapping , nitrone , electron paramagnetic resonance , chemistry , cleavage (geology) , hyperfine structure , photochemistry , polymerization , adduct , selectivity , spin (aerodynamics) , polymer chemistry , polymer , materials science , nuclear magnetic resonance , organic chemistry , atomic physics , catalysis , physics , fracture (geology) , cycloaddition , composite material , engineering , aerospace engineering

The cleavage of different photoinitiators (PIs) of polymerization is investigated by the ESR spin trapping using two different spin traps (STs): 5,5′‐dimethyl‐1‐pyrroline N ‐oxide (DMPO) and phenyl N ‐ tert ‐butyl nitrone (PBN). The hyperfine splitting constants for the different adducts are measured and provide a new set of data. These results show a difference of selectivity between the two (STs) and outline their complementarities.

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