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Siloxane network structures: Kinetics of gelation observed using nuclear magnetic resonance
Author(s) -
Girard O.,
Guillermo A.,
CohenAddad J. P.
Publication year - 1989
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19890300108
Subject(s) - siloxane , kinetics , relaxation (psychology) , materials science , nuclear magnetic resonance , magnetization , polymer , magnetic field , composite material , physics , psychology , social psychology , quantum mechanics
Transverse nuclear magnetization properties of protons are investigated during the gelation of short poly(dimethylsiloxane) chains. Both the kinetics of the reaction and the amount of the gel fraction are characterized. The sol and gel fractions are distinguished “in situ” during the whole process by performing pseudo‐solid spin‐echoes and through a simple analysis of the relaxation shape.