高等学校化学学报Issue(6)：1208-1212,5.DOI:10.7503/cjcu20150095
阿维菌素纳米水分散体的制备、表征及稳定性
Preparation, Characterization and Stability of Avermectin Nano Aqueous Dispersion
摘要
Abstract
Two reactive hydroxyl groups made avermectin a component to prepare anionic polyurethane disper-sant containing avermectin structure units. The structure of the resulting dispersant was characterized by 1 H nuclear magnetic resonance spectrometer and infrared spectrometer. Based on the structural similarity be-tween the dispersant and avermectin, avermectin nano aqueous dispersion was fabricated via addition the solu-tion of dispersant and avermectin into water. The influences of carboxyl content and the molecular weight of the dispersant on the particle size of the dispersion were investigated. The results indicated that smaller parti-cles were obtained at higher carboxyl content and the dispersing ability was affected by the molecular weight of the dispersant. The transmission electron microscopic image of the dispersion revealed that almost spherical particles with most of the size in the range of 20—40 nm were formed. Moreover, the dispersion displayed high centrifugal stability and dilution stability.关键词
阿维菌素/分散剂/纳米尺度/水分散体/农药Key words
Avermectin/Dispersant/Nano size/Aqueous dispersion/Pesticide分类
化学化工引用本文复制引用
章文翔,梅豪,关文勋,唐黎明..阿维菌素纳米水分散体的制备、表征及稳定性[J].高等学校化学学报,2015,(6):1208-1212,5.基金项目
国家“九七三”计划项目(批准号:2014CB932202)和国家自然科学基金(批准号:21174079,20874055)资助 （批准号:2014CB932202）
