Bei I. Effect of montmorillonite on synthesis, structure and properties of polycyanurates

Development of polycyanurates modification by using of modifiers of different nature and effect is under attention in this work. The aim of this work was determination of polycyanurate network formation peculiarities in the presence of soft-chain reactive modifier poly(tetramethylene glycol) and layered aluminum silicate montmorillonite. Furthermore effect of the modifier and filler on structure and morphology, as well as dynamics and mechanical properties of the composites obtained was investigated in details. The main results of this work were obtained by means of IR-spectroscopy, X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, dynamic mechanical analysis, creep rate spectroscopy. For the first time combined modification of polycyanurates by organic reactive polymer and inorganic aluminum silicate filler was employed. It was shown that using of polyether or montmorillonite resulted in nanoheterogeneity of the modified polycyanurates due to the presence of the nanofiller and nanophase-separation in polycyanurate/polyether network. Using of such combined modification was revealed to result in polymer composites with high elastic modulus. Results obtained can be used for the development of polymer systems based on polycyanurates and synthesis of polymer materials with improved properties for glues, coatings, composite materials etc.