FIELD: chemistry.
SUBSTANCE: said invention relates to rubber-reinforced vinylarene polymers. Rubber-reinforced vinylarene (co)polymers are described. They have strictly bimodal morpholgy and consist of 55-90 wt % of rigid polymer matrix and 10-45 wt % of rubber-like phase dispersed in the said rigid polymer matrix in the form of grafted and occluded particles. The said rubber particles consist of 60-99 wt % of capsular, or "coat-core" type, particles and 1-40 wt % of "salami"-type particles, percent ratios being specified for rubber particles weight only. Difference between Hildebrand solubility parameter of elastomer, which forms rubber-like "capsular" particles and Hildebrand solubility parameter of elastomer, which forms "salami"-type particles, is 0.5 or over, mean diameter of "coat-core" type particles is 0.10 to 0.30 mcm, and mean diameter of "salami"-type particles is 1 to 5 mcm. Also, continuous process for production of bulk and suspended rubber-reinforced vinylarene (co)polymers is described.
EFFECT: production of rubber-reinforced vinylarene polymers, which contain particles of strictly bimodal distribution, with improved mechanical properties.
15 cl, 4 dwg, 1 tbl, 4 ex
