...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Real-time investigation of solvent swelling induced β-phase formation in poly(9,9-dioctylfluorene)
【24h】

Real-time investigation of solvent swelling induced β-phase formation in poly(9,9-dioctylfluorene)

机译：实时研究溶剂溶胀诱导的聚（9,9-二辛基芴）中的β相形成

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 physical processes leading to solvent swelling induced glassy- to β-phase transition in poly(9,9-dio-ctylfluorene) thin films are investigated in real time by photoluminescence and confocal spectroscopy. We show that the vapor solvent swelling induced β-phase formation takes place in much shorter times (few minutes) than the one usually employed in literature (several hours). Moreover, we show that the swelling is faster if the solvent mainly interacts with the PF8 aromatic rings (toluene) than with the octyl chains (iso-octane). On the contrary, no swelling is caused by nonsolvents such as n-butylic alcohol. Finally, we demonstrate that the β-phase formation is due to athermal (simultaneous) nucleation followed by diffusion controlled one dimensional crystallization.
机译：通过光致发光和共聚焦光谱法实时研究了导致溶剂膨胀引起的聚（9,9-二-ct-芴基）薄膜中的玻璃相到β相转变的物理过程。我们表明，与文献中通常使用的溶剂溶剂（几个小时）相比，气相溶剂溶胀诱导的β相形成的时间要短得多（几分钟）。此外，我们表明，如果溶剂主要与PF8芳环（甲苯）相互作用，则溶胀比与辛基链（异辛烷）相互作用更快。相反，非溶剂如正丁醇不会引起溶胀。最后，我们证明了β相的形成是由于无核（同时）成核，然后是扩散控制的一维结晶。

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