Preparation method of submicron carboxyl functionalized polystyrene microspheres

• Main Authors: YU HAOMIAO, WANG BINGCHUN, WANG XIANBIN, XU JINGHUA, LI JIN, GE CHANGHAO
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a preparation method of submicron carboxyl-functionalized polystyrene microspheres, which mainly comprises the following steps: uniformly mixing a styrene monomer without a flame retardant with deionized water, then mixing with methacrylic acid, an emulsifier, a co-emulsion and a dispersant, finally adding an initiator at 30-60 DEG C, and reacting at 60-90 DEG C for 2-12 hours to obtain the submicron carboxyl-functionalized polystyrene microspheres. A nitrogen environment is kept in the whole experiment process, and the obtained emulsion is washed with ethanol and dried to prepare the submicron carboxyl functionalized polystyrene microspheres. The microspheres prepared by the method have the characteristics of uniform size, high sphericity, mild synthesis conditions, simplicity in operation, easiness in repetition and the like, and have great application potential in preparation of porous materials. 本发明公开了一种亚微米级羧基功能化聚苯乙烯微球的制备方法，主要包括以下步骤：将除去阻燃剂的苯乙烯单体与去离子水混合均匀，后与甲基丙烯酸、乳化剂、助乳剂、分散剂混合，最后在30