• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Paper and Coating Chemistry Symposium >Conformation of Poly(Styrene-Maleic Anhydride) at different pH Values: Formation of Nanorods in Solution
【24h】

Conformation of Poly(Styrene-Maleic Anhydride) at different pH Values: Formation of Nanorods in Solution

机译：不同pH值下聚（苯乙烯 - 马来酸酐）的构象：溶液中纳米棒的形成

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, the association of poly(styrene-maleic anhydride) (SMA) is characterised by theoretical methods (quantum mechanical and molecular mechanical) and experimental methods (cryo-TEM and Neutron Reflectivity). The theoretical study showed that the polymer at pH3 and 12 has a helical conformation which does not allow any ordered association between the chains. The conformation at pH7 is linear and allows a large ordered association between the chains. The most stable conformation obtained for the association is a tubular structure containing mainly hydrophobic groups inside the tube and mainly hydrophilic groups on the exterior surface of the tube. This association was confirmed experimentally by cryo-TEM and this method verified the tubular structure of the association. Neutron Reflectivity experiments were performed to understand the equilibrium between the conformation of SMA at pH7 at the air-water interface and in solution. These experiments showed that the association has an effect on the conformation of SMA at the air-water interface but not on the ordering of the molecules at the interface.
机译：在该研究中，聚（苯乙烯 - 马来酸酐）（SMA）的缔合的特征在于理论方法（量子机械和分子机械）和实验方法（Cryo-TEM和中子反射率）。理论研究表明，PH3和12处的聚合物具有螺旋形构象，其不允许链之间的任何有序关联。 PH7的构象是线性的，允许链之间的大有序关联。用于关联获得的最稳定的构象是管状结构，其主要包含管内的疏水基团，主要是管的外表面上的亲水基团。通过Cryo-TEM通过实验确认该协会，该方法验证了该协会的管状结构。进行中子反射率实验以了解在空气 - 水界面和溶液中PH7在PH7的SMA构象之间的平衡。这些实验表明，该关联对空气界面处的SMA构象有影响，但不对界面处的分子的排序。

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