| 摘要 |
FIELD: polymers, chemical technology. ^ SUBSTANCE: invention relates to a method for preparing polyvinyl chloride. Method involves the suspension polymerization of vinyl chloride in an aqueous medium being vinyl chloride can be taken in mixture with other vinyl monomer taken in the amount less 50 wt.-%. Reaction is carried out in the presence of a polymerization initiating agent comprising at least one compound taken among dialkylperoxydicarbonates, peroxy-tert.-alkanoates and diacylperoxides. Mono- or dialkyl-substituted N-hydroxylamine with alkyl radical comprising from 1 to 4 carbon atoms is used as an agent regulating the polymerization reaction. Invention provides preparing resin showing improved color and thermostability. ^ EFFECT: improved preparing method. ^ 14 cl, 5 tbl, 14 ex |
