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Dielectric studies of the polymerization of diethylene glycol bis(allyl carbonate)
Author(s) -
de Meuse M.
Publication year - 1993
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760331607
Subject(s) - diethylene glycol , materials science , dielectric , polymerization , glass transition , polymer chemistry , double bond , carbonate , polymer , organic chemistry , composite material , ethylene glycol , chemistry , optoelectronics , metallurgy
Results of dielectric studies are presented for the polymerization of diethylene glycol bis (allyl carbonate). Two transitions are observed in the dielectric spectra, one that can be related to motion of the carbonate unit and another that has been identified as the glass transition. A relation between the glass transition temperature and the level of conversion of double bonds has been established for this system in the 70 to 100% conversion range. While there appears to be a one‐to‐one relationship between these two parameters, such is not the case for the position of the low‐temperature, secondary transition and the level of conversion. This latter result is interpreted in terms of the local free volume available in the crosslinked system.