...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of the Chemical Society of Japan >Photodimerization of trans-Cinnamic Acid in a Bilayer of Dimethyldioctadecylammonium Bromide
【24h】

Photodimerization of trans-Cinnamic Acid in a Bilayer of Dimethyldioctadecylammonium Bromide

机译：肉桂酸在二甲基二十八烷基溴化铵双层膜中的光二聚化

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 photochemistry of trans-cinnamic acid (trans-1) was studied in a cast film of dimethyldioctadecylammonium bromide (2), deposited from aqueous dispersions as a crystalline solid by the spontaneous vaporization of water. UV irradiation of the cast film resulted in a highly selective formation of the syn-Head-to-Head dimer, suggesting a parallel orientation of trans-1 within a bilayer film. Analyses with X-ray diffraction, differential scanning calorimetry, and IR spectra revealed the formation of a bilayer structure of 2 in which the molecules of trans-1 are dissolved to interact with 2 of the polar head groups. The photoreactivity of trans-1 in the cast film was found to be dramatically suppressed by heating at 40-60 ℃, which is attributed to an improvement in the crystallinity of the bilayer.
机译：在二甲基二十八烷基溴化铵（2）的流延膜中研究了反肉桂酸（trans-1）的光化学，该流延膜是通过水的自发蒸发从水分散体中以结晶固体形式沉积的。流延膜的紫外线照射导致syn-Head-to-Head二聚体高度选择性地形成，表明在双层膜中反式-1的平行取向。用X射线衍射，差示扫描量热法和IR光谱进行的分析揭示了2的双层结构的形成，其中trans-1的分子被溶解以与2个极性头基相互作用。发现在40-60℃下加热可显着抑制流延膜中trans-1的光反应性，这归因于双层结晶度的提高。

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