M. Demeuse, DIELECTRIC STUDIES OF THE POLYMERIZATION OF DIETHYLENE GLYCOL BIS(ALLYL CARBONATE), Polymer engineering and science, 33(16), 1993, pp. 1049-1054
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 ca
rbonate unit and another that has been identified as the glass transit
ion. 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-o
ne relationship between these two parameters, such is not the case for
the position of the low-temperature, secondary transition and the lev
el of conversion. This latter result is interpreted in terms of the lo
cal free volume available in the crosslinked system.