| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: method for making oligo-(poly)-organosiloxane additive implies reaction of oligoorganosiloxane of formula: (CH3)3SiO[(CH3)2SiO]m[(CH3)(CH2CH2CF3)SiO]nSi(CH3)3, where m=563, n=04, and organic transition metal compound chosen from the group including cerium, iron, nickel, cobalt, chrome and copper at temperature 240-290C combined with the air running through the reaction mass. Before the process, the air is additionally run through oligorganosiloxane within 30-60 minutes at air consumption prior to and during reaction within 1 to 5 ml/min per 1 g of the reaction mass. Organic transition metal compound is preliminary dissolve in a hydrocarbon solvent. The prepared solution is added to oligoorganosiloxane. The produced additives are dissolved in any concentration at temperature 100C and lower in siloxane base liquids in synthesis of additives, and possess colloid long-term storage-stability. ^ EFFECT: improved technological effectiveness of making additives with high antioxidant efficiency and colloid long-term storage-stability. ^ 3 cl, 5 ex |
