Fig. 1

Thermal stability of raw materials and composites. a Mass loss curves. b Differential mass loss curves. c DTA curves. 1 The silica modified with vinyl trialkoxysilane; 2 the polymer 2,7-NAF.DM; 3 the mechanical mixture of the vinylated silica and the poly2,7-NAF.DM with the silica/polymer ratio 2:1 (sample 3 in Table 1); 4 the silica with chemisorbed polymeric layer obtained via in situ grafted polymerization of monomer 2,7-NAF.DM on the vinylated silica surface. Polymerization was carried out in toluene solution of the monomer in the presence of the dispersed silica and was initiated by AIBN during sonication with following heating at 80 °C for 24 h. The silica/polymer ratio in the composite was 2:1 (sample 4 in Table 1)