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decrease of tg δ value and maximum shifting accordingly by 10 ºC and 25 ºC into the region
of lower temperatures that points to plasticizing action of modifier.
Further investigations have shown that, in spite of slight deterioration of dielectric
properties and increase of electric conduction, polymer modification causes considerable
improvement of mechanical properties (δ destr. and ρ destr. increase almost by two times),
moreover much higher values of strength and deformation are observed in samples containing
0,5% hexaazocyclane. Considerably growth of modified fibres strength is explained by
plasticing effect of additive, since plasticization facilitates uniform distribution of stresses
oriented strengthening of polymer.
Figure 3. 31. Kinetic curves of acetic acid formation at irradiation of unstabilized CDA-films (1) and in
the presence of GC - 1 (3) and GC - 2 (2) in vacuum at 298°K.
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