手机知网 App
24小时专家级知识服务
打 开
手机知网|搜索

醇-水混合溶剂中双亲水嵌段共聚物对CaCO_3粒子形貌的调控

齐利民;李洁;马季铭

  The crystallization of calcite from mixed alcoholwater solvents in the presence of a doublehydrophilic block copolymer poly(ethylene glycol)blockpoly(methacrylic acid)(PEGbPMAA) has been investigated. It was revealed that with increasing the volume fractions of ethanol or isopropanol, the morphology of the CaCO3 particles generally varies from peanuts through rods to spheres in the presence of the polymer. Specifically, uniform rounded calcite rods, which are about2 μmin length with an aspect ratio of 2.6, were obtained in the isopropanol solution with volume fraction 50%.……   
[关键词]:双亲水嵌段共聚物;CaCO3粒子;形貌调控;混合溶剂;生物模拟合成
[文献类型]:期刊
[文献出处]: 《高等学校化学学报2002年08期
[格式]:PDF原版; EPUB自适应版(需下载客户端)
App内打开