1, 3, 5, 7-tetramethyl tetraglycidyl propoxy ether cyclotetrasiloxane as well as preparation method and application thereof

• Main Authors: TANG CHANGJUN, ZHAO XIAOHUA
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2024
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention provides 1, 3, 5, 7-tetramethyl tetraglycidyl propoxy ether cyclotetrasiloxane as well as a preparation method and application of the 1, 3, 5, 7-tetramethyl tetraglycidyl propoxy ether cyclotetrasiloxane. The invention relates to a preparation method of 1, 3, 5, 7-tetramethyl tetraglycidyl propoxy ether cyclotetrasiloxane, which comprises the following steps: (1) adding 1, 3, 5, 7-tetramethyl cyclotetrasiloxane and allyl glycidyl ether into a reaction container, uniformly stirring, heating to 25-30 DEG C, adding a Karstedt catalyst, reacting to release heat, controlling the reaction temperature by cooling water, and slowly heating to 80-85 DEG C; (2) continuing dropwise adding allyl glycidyl ether, after dropwise adding is finished, raising the temperature to 160-165 DEG C, and reacting for 10-12 hours; and (3) carrying out reduced pressure distillation on the reaction mixture in the step (2) at the temperature of 160-165 DEG C, and removing redundant allyl glycidyl ether to prepare the 1, 3, 5,