• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Seeded dispersion polymerization
【24h】

Seeded dispersion polymerization

机译：种子分散聚合

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Micron-size poly(n-butyl acrylate) (PBA) and polystyrene (PSt) particles were used as seed in second-stage seeded dispersion polymerizations. The effects of various polymerization parameters on the morphology of the structured particles resulting from the second-stage seeded dispersion polymerizations were studied, and a series of uniform micron-size structured particles was successfully prepared. In addition to the polymerization medium, the type of stabilizer (i.e., the molecular weight of the polyvinylpyrrolidone [PVP] stabilizer) that was used in the seed preparation and the subsequent seeded dispersion polymerization was found to be important. The final outcome of a seeded dispersion polymerization, that is, the morphology of the structured particles and the formation of secondary particles, was found to be primarily governed by thermodynamic factors, It was also found that the latex particles in these dispersion systems are virtually stabilized by the small amount of grafted PVP molecules. The dispersions maintain colloidal stability after repeated washing of the particles, which removes all of the soluble PVP. (C) 2002 Wiley Periodicals, Inc. [References: 43]
机译：微米级的聚丙烯酸正丁酯（PBA）和聚苯乙烯（PSt）颗粒用作第二阶段种子分散聚合的种子。研究了第二阶段种子分散聚合反应中各种聚合参数对结构化颗粒形态的影响，成功制备了一系列均匀的微米级结构化颗粒。除了聚合介质之外，发现用于种子制备和随后的种子分散聚合中的稳定剂的类型（即聚乙烯吡咯烷酮[PVP]稳定剂的分子量）也很重要。种子分散聚合的最终结果，即结构化颗粒的形态和次级颗粒的形成，主要受热力学因素支配，还发现这些分散体系中的胶乳颗粒实际上是稳定的通过少量嫁接的PVP分子。反复洗涤颗粒后，分散体保持胶体稳定性，从而去除了所有可溶性PVP。 （C）2002 Wiley Periodicals，Inc. [参考：43]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号