Absorption spectra of DEB crystals (, ) before (0) and after irradiation (time in minutes shown in figure) by: a) -radiation ; b) light (, ); c) light (, ); d) DEB crystals absorption spectra for different types of irradiation.
Dependence of polymer optical density (at ) on the time of irradiation of DEB crystals (, ) by light: a) , ; b) , ; c) -radiation ( (curve 1), (curve 2), ); d) light (, , ).
Dependence of polymer optical density on time of irradiation of DEB crystals (, ) by light: a) , ; b) during first (vertical line) the sample was irradiated by light with , amd then it was irradiated by light with , . The dashed lines are the dependence of on during irradiation of the sample by light (, ) without preliminary irradiation (data of Fig. 3a). At (curve 1), 400 (2), and (3).
Dependence of polymer optical density on logarithm of DEB crystals irradiation time by light with: a) (irradiation conditions the same as in Fig. 2b). At (curve 1), 450 (2), (3); b) (irradiation conditions as in Fig. 3a). At (curve 1), 400 (2), 450 (3), and 500 ; c) . Sample thickness: (curve 1); (2, 3). Intensities: (1, 2); (3). At ; d) (irradiation conditions the same as in Fig. 2a). At .
Checking of interpolation formula for polymer optical density under irradiation of a DEB crystal (, ) by light with . , .
a—Absorption spectra of DEB crystal irradiated by light (, ) at . Time (min): 2 (1); 2.5 (2); 4 (3); 6 (4); 8 (5); 10 (6); 40 (7). b—Absorption spectra changes at heating of the DEB crystal irradiated at : the absorption spectrum of a DEB crystal irradiated at by light with , (curve 1); an increase of after heating of this sample up to (2) and (3). The spectra were recorded at .
Characteristics of polymerization of DEB crystals.
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