FIELD: chemistry.
SUBSTANCE: invention can be used in manufacturing adhesives, coatings, and sealing agents. Proposed is an aliphatic polysulphide polymer with terminal epoxy groups by the formula R"-CHOH-CH2-S-R-(Sy-R)t-S-CH2-CHOH-R", wherein each R is independently selected from branched alkanediyl or arenediyl groups and groups with the structure -(CH2)a-O-(CH2)b-O-(CH2)c-, wherein t is from 1 to 60, y is from 1.0 to 2.5, b is from 1 to 8, and a, c are from 1 to 10, and wherein each R" independently represents a radical by the following formula:
,
wherein m, n, o, p, q, and r are from 1 to 10. Also proposed is a method for producing the aliphatic polysulphide polymer.
EFFECT: improved stability during storage and flexibility of the polysulphide polymer.
14 cl, 4 dwg, 1 tbl, 3 ex
Authors
Dates
2022-12-01—Published
2021-05-18—Filed