Method for effectively improving MAH grafting rate in compatilizer based on DES system

• Main Authors: LIU GUANGYUAN, CHEN XIANGYING, ZHAI QIANCHAO, ZHENG DEBAO, WANG YIHUI, WANG FENGWU
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses a method for effectively improving the MAH grafting rate in a compatilizer based on a DES system, and the method comprises the following steps: S1, dissolving choline chloride in ethylene glycol, carrying out heating treatment, and when a mixed solution is cooled to room temperature, conducting standing for 20-28 hours to obtain a uniform DES solvent; S2, placing the MAH at the bottom of a spray reactor, heating the MAH to enable the MAH to sublimate and rise to the middle of the reactor, adding a DES solvent at the top end of the spray reactor, enabling the DES solvent to fall down in a mist form at the top end of the reactor, fully and uniformly mixing the DES solvent with MAH gas in the middle of the reactor, returning the formed mixture to the top end for continuous reaction to obtain a DES-MAH initial product, putting the obtained DES-MAH initial product into a three-neck flask, and conducting heating, condensing and refluxing to obtain a final product of DES-MAH; and S3, mixing t