Synthesis and Characterization of Copolymer of Carboxylate and Sulfonate Dispersant

›› 2010, Vol. 10 ›› Issue (6): 1193-1199.

• 材料工程专栏 • Previous Articles Next Articles

Synthesis and Characterization of Copolymer of Carboxylate and Sulfonate Dispersant

WANG Li-dong REN Tian-rui YAN Yun-feng YU Song-rui XU Wen-ping

College of Life and Environment Sciences, Shanghai Normal University College of Life and Environment Sciences, Shanghai Normal University College of Life and Environment Sciences, Shanghai Normal University College of Life and Environment Science, Shanghai Normal University College of Pharmacy, East China University of Science and Technology

Received:2010-09-27 Revised:2010-11-12 Online:2010-12-20 Published:2010-12-20
Contact: REN Tian-rui

羧酸盐磺酸盐共聚物分散剂合成及其分散性能

王利东任天瑞燕云峰吁松瑞徐文平

上海师范大学生命与环境科学学院上海师范大学生命与环境科学学院上海师范大学生命与环境科学学院上海师范大学生命与环境科学学院华东理工大学药学院

通讯作者: 任天瑞

Abstract

Abstract: The dispersants of acrylic acid (AA)-styrene sulfonic sodium (SSS)-maleic anhydride (MA) copolymer were synthesized and their dispersion effect on inorganic BaSO4 powder and organic pesticide imidacloprid were studied in detail. The morphology, crystal structure and size distribution of BaSO4 suspended particles were characterized. The results showed that the copolymer had an excellent dispersion efficiency when the mass ratio of AA, SSS and MA is 20:4.5:2.0, reaction temperature 70℃, 7.5% of mass fraction of initiator in total monomers, and reaction time 1.5 h. The optimized copolymer dispersant (M17) was obtained, and its suspension rate to BaSO4 and water dispersible granules with 70% imidacloprid was 98.78% and 70%, respectively, which is equal to Rhodia T36.

Key words: acrylic acid, styrene sulfonic sodium, polymeric dispersant, water dispersible granules, imidacloprid

摘要： 合成了丙烯酸(AA)-苯乙烯磺酸钠(SSS)-顺丁烯二酸酐(MA)三元共聚物钠盐分散剂，研究了其对无机物BaSO4和有机物农药吡虫啉的分散效果，并对BaSO4悬浮颗粒的形貌、晶型结构及粒径分布进行了表征. 结果表明，当单体质量比AA:SSS:MA=20:4.5:2.0、反应温度70℃、引发剂占单体总质量7.5%、聚合时间1.5 h时，制备的最优化分散剂M17在20℃的中性体系中对BaSO4的悬浮率达98.78%，平均粒径为0.454 mm，对70%吡虫啉水分散粒剂的悬浮率为84.40%，分散效果与罗地亚T36相当.

关键词: 丙烯酸, 苯乙烯磺酸钠, 聚合物分散剂, 水分散粒剂, 吡虫啉

CLC Number:

WANG Li-dong REN Tian-rui YAN Yun-feng YU Song-rui XU Wen-ping. Synthesis and Characterization of Copolymer of Carboxylate and Sulfonate Dispersant[J]. , 2010, 10(6): 1193-1199.

王利东任天瑞燕云峰吁松瑞徐文平. 羧酸盐磺酸盐共聚物分散剂合成及其分散性能[J]. , 2010, 10(6): 1193-1199.

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Synthesis and Characterization of Copolymer of Carboxylate and Sulfonate Dispersant

羧酸盐磺酸盐共聚物分散剂合成及其分散性能

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