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聚丙烯酸微球自组装形态的透射电镜观察
  • ISSN号：1000-6281
  • 期刊名称：《电子显微学报》
  • 时间：0
  • 分类：TG115.2[金属学及工艺—物理冶金;金属学及工艺—金属学] O632.51[理学—高分子化学;理学—化学]
  • 作者机构：[1]上海交通大学化学化工学院,上海200240, [2]华东师范大学化学系,上海200241
  • 相关基金：国家自然科学基金资助项目（No.50730008）
作者： 刘丽月[1], 蒋春晓[2], 陈启明[2]
关键词： 透射电镜制样方法, 粘稠状乳液, 聚丙烯酸微球, 自组装, sample preparation technique for TEM, viscous emulsion, polyacrylic acid micro-particle, self-assembly
中文摘要：

本文以无皂乳液聚合法制备的聚丙烯酸微球乳液为例,介绍了一种新的透射电镜样品的制样方法。即直接将粘稠状乳液滴在铜网上,随即刮去多余的大部分乳液从而在铜网上形成极薄的连续膜或间断膜。采用这种制样方法,无需对乳液进行稀释,即可得到适用于TEM观察的样品。利用TEM直观地观察到了聚丙烯酸微球紧密排列的单层膜和球表面存在包裹物的结构,分析了包裹物的元素组成。此外,还观察到了聚丙烯酸微球紧密排列的自组装双层膜和多层膜的形态。

英文摘要：

In this paper,a new sample preparation technique for TEM is introduced,taking the non-soap emulsion polymerized polyacrylic acid emulsion for example.The sample preparation technique includes： drop the viscous emulsion directly on the grid and then scrape the excess emulsion using a flat sheet,an ultrathin continuous film or discontinuous film will be formed on the grid when the grid was dried.Using this technique,the sample adapted to TEM observation can be obtained.The structure of polyacrylic acid micro-particle covering initiator and emulsifier was observed intuitively.Also,the self-assembly single-layer,double-layer and multi-layer film formed by closet packing polyacrylic acid micro-particle were obtained and observed.

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期刊信息
  • 《电子显微学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国物理学会
  • 主编：张 泽
  • 地址：北京市海淀区中关村北二条13号5号楼301
  • 邮编：100190
  • 邮箱：dzxwxb@blem.ac.cn
  • 电话：010-82671519 62565522/3301
  • 国际标准刊号：ISSN：1000-6281
  • 国内统一刊号：ISSN：11-2295/TN
  • 邮发代号:
  • 获奖情况:
  • 曾获《中国科技论文统计源期刊（中国科技核心期刊）》,《中国科学引文数据库(核心库)》来源期刊,中国自然科学核心期刊（无线电电子学、电信技术类...
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  • 美国化学文摘（网络版）,英国科学文摘数据库,中国中国科技核心期刊,中国北大核心期刊（2008版）,中国北大核心期刊（2000版）
  • 被引量:6569