• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ultrasonics sonochemistry >Ultrasound-induced synthesis of an imidazolium based poly(ionic liquid) in an aqueous media: A structural, thermal and morphological study
【24h】

Ultrasound-induced synthesis of an imidazolium based poly(ionic liquid) in an aqueous media: A structural, thermal and morphological study

机译：含水介质中咪唑鎓基聚（离子液体）的基于咪唑鎓的聚（离子液体）的合成：结构，热和形态学研究

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

Here we describe an efficient and rapid way for the polymerization of the 3-Octyl-1-vinylimidazolium Bromide using ultrasonic irradiation. This way promoted high dispersion polymerization using a water-soluble free radical initiator namely 4,4'-Azobis (4-cyanopentanoic acid) and free of dispersant. The ionic liquid monomer was prepared via quaternization of 1-vinylimidazole with octyl bromide also promoted by ultrasound. The polymerization rates were compared with a conventional heating method and appeared to be higher in the ease of the ultrasound method within a short reaction time. The structural/morphological features and thermal properties of the obtained products were determined by different analytical techniques such as (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electronic microscopy (SEM, TEM), Fourier transform infrared spectroscopy (FTIR) and NMR Spectroscopy (H-1 and C-13 NMR). The morphology and the thermal behavior of the obtained poly(ionic liquid) were investigated and discussed. The results indicated that self-assembled nanospherical particles of 30-80 nm in diameter were obtained through the ultrasound method, while on the other hand; worm-like/cylindrical agglomerated nanoparticles with irregular sizes 50-300 nm in diameter were obtained via the classical heating method.
机译：在这里，我们描述了使用超声辐射来聚合3-辛基-1-乙烯基咪唑溴铵的高效且快速的方式。这种方式使用水溶性自由基引发剂促进高分散聚合即4,4'-偶氮酸（4-氰基甲酸）并没有分散剂。离子液体单体通过1-乙烯基咪唑的季铵化制备，用超声促进辛基溴。将聚合速率与常规加热方法进行比较，并且在短反应时间内易于超声方法似乎更高。所得产物的结构/形态特征和热性质通过不同的分析技术（如（TGA），差示扫描量热法（DSC），X射线衍射（XRD），传输电子显微镜（SEM，TEM），傅里叶变换而确定红外光谱（FTIR）和NMR光谱（H-1和C-13 NMR）。研究并讨论了所得聚（离子液体）的形态和热行为。结果表明，通过超声法测定直径30-80nm的自组装纳米球颗粒，另一方面是直径的;通过经典的加热方法获得具有不规则尺寸50-300nm的蜗杆/圆柱凝聚的纳米颗粒。

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