Allyl diethylene glycol carbonate sheet and efficient preparation method thereof

• Main Authors: DING KUKE, LIU YAO, XU RIWEI, LIN LIN, ZHANG GUANGSHE, TANG XIAOZHE, ZHANG LI, ZHAO CHENSHAN
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2024
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention provides an allyl diethylene glycol carbonate sheet and a preparation method thereof, and the allyl diethylene glycol carbonate sheet is prepared by curing allyl diethylene glycol carbonate and a chain transfer agent as main raw materials under ultraviolet irradiation. By adding the chain transfer agent, too fast chain growth can be effectively controlled, large-proportion shrinkage of the sheet in the curing process is avoided, the mechanical property is favorably improved, and meanwhile, the curing speed is not influenced. According to the method, the ultraviolet light initiator is added for light curing, the curing speed can be effectively increased, the curing time can be effectively shortened, compared with a peroxide initiator, the method can achieve curing at the normal temperature, the reaction controllability is higher, and the prepared allyl diethylene glycol carbonate sheet is high in transmittance, low in yellow index and capable of being applied to spectacle lenses. In addition, the