| 摘要 |
FIELD: organic chemistry of polymers, chemical technology. ^ SUBSTANCE: invention relates to a method for preparing cross-linked polymers of enhanced resistance to heat. Invention proposes polyester synthesized by using glycerol - an organic base with functionality value f = 3 and organic acid as the parent components and comprising additionally an organic base with value f >= 3 - triethanolamine or polyethylenepolyamine. As an organic acid method involves using adipic acid with value f = 2, or tartaric acid with value f = 2, or citric acid with value f = 3 in the following ratio of components, wt.-%: glycerol, 10-17; triethanolamine or polyethylenepolyamine, 17-32; adipic, tartaric or citric acid, 58-66; f means amount of reactive functional groups of basic and acid type in each molecule of the component. Method for preparing polyester involves carrying out synthesis at increased temperature from the parent components and hardening stage in a single reaction volume simultaneously. Invention provides enhancing resistance to heat of material and decreasing consumptions for its preparing. ^ EFFECT: improved preparing method. ^ 2 cl, 1 tbl, 9 ex |
