...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >A silanol protection mechanism: Understanding the decomposition behavior of surfactants in mesostructured solids
【24h】

A silanol protection mechanism: Understanding the decomposition behavior of surfactants in mesostructured solids

机译：硅烷醇保护机制：了解表面活性剂在介孔结构固体中的分解行为

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

The decomposition mechanism of block copolymer templates inside as-synthesized mesostructured solids has been systematically studied using solid-state H magic angle spinning nuclear magnetic resonance spectroscopy, thermogravimetric analysis, and high-vacuum Fourier transform infrared spectrometry. It is shown that there exists hydrogen-bonding interaction between silanols and block copolymers at the inorganic-organic interface in the self-assembled as-synthesized mesostructured solids, which plays an important role in protecting the surfactants against decomposition during the high-temperature hydrothermal treatment process. Increasing silanol concentration can enhance the hydrogen-bonding interaction and thus shows better "protection" effect. Moreover, the thermal decomposition of the block copolymer in as-synthesized mesostructured solids in air commences at higher temperatures compared with that in acidic solution or in air, providing further evidence in support of the silanol protection mechanism.
机译：利用固态H幻角旋转核磁共振光谱，热重分析和高真空傅里叶变换红外光谱系统研究了合成的介孔结构固体中嵌段共聚物模板的分解机理。结果表明，自组装合成介孔结构固体中，硅烷醇与嵌段共聚物在无机-有机界面处存在氢键相互作用，在高温水热处理过程中保护表面活性剂免于分解起着重要作用。处理。硅烷醇浓度的增加可以增强氢键相互作用，因此显示出更好的“保护”效果。此外，与在酸性溶液或空气中相比，在空气中，合成后的介孔结构固体中嵌段共聚物的热分解在更高的温度下开始，为支持硅烷醇保护机理提供了进一步的证据。

著录项

  • 来源
    《Journal of Materials Research》 |2011年第6期|p.804-814|共11页
  • 作者

    Dahai Pan; Lingzhi Zhao; Kun Qian; Lei Tan; Liang Zhou; Jun Zhang; Xiaodan Huang; Yu Fan; Haiyan Liu; Chengzhong Yu; Xiaojun Bao;

  • 作者单位

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Changping,Beijing 102249, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Changping,Beijing 102249, People's Republic of China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Changping,Beijing 102249, People's Republic of China;

    Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Changping, Beijing 102249, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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