SYNTHESIS AND PHOTOLUMINESCENCE OF AN ANTHRACENE-CONTAINING HYPERBRANCHED POLY(ARYLENEETHYNYLENE)

来源 :高分子科学(英文版) | 被引量 : 0次 | 上传用户:lvz
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A hyperbranched poly(aryleneethynylene) containing anthracene chromophore was synthesized by palladiumcatalyzed cross-coupling reaction of 2,4,6-triiodophenyl 9-anthracenylcarboxylate with 9,9-bis[4-(2-propynyloxy)phenyl]-9H-fluorene. The structure and properties of the polymer are characterized and evaluated by NMR, IR, UV, PL and TGA analyses. The polymer is soluble in common organic solvents, possesses high thermal stability (Td > 330℃), and emits a strong blue light of 465 nm in both solution and solid states.
其他文献
基于刚体目标3维运动过程中的几何不变性,可以利用目标上多个散射点在单天线雷达1维距离像序列中的1维距离数据,重建出目标未知的3维结构和运动路径。针对此1维到3维的几何重构问题,提出了一种雷达刚体目标结构和运动的3维重建算法,该算法可利用散射点复杂的1维距离数据进行重建,并且采用非线性优化技术实现了对目标重建参数的捆绑调整(bundle adjustment)。另外,该算法中引入了目标的平移模型,使
对济南体校2号馆预应力组合网架进行了索张拉过程的施工模拟分析,并计算了张拉阶段的索张力控制值。采用振弦式应变传感器、电阻应变片、全站仪等测量仪器对预应力张拉过程中
以电感耦合等离子体质谱法(ICP-MS)测定了高纯铼中26种杂质元素含量。应用反应池技术消除了复合离子对K、Ca、Fe等元素的干扰,采用干扰方程校正技术消除了Re氧化物对Tl的质谱
目的:对贵州产鱼眼草植物花、茎叶挥发油成分进行研究。方法:采用固相微萃取技术提取挥发油成分,用气相色谱-质谱联用技术对挥发油进行分析测定。结果:从鱼眼草花挥发油中共
Nucleoside phosphorylases (NPases) were found to be induced in Enterobacter aerogenes DGO-04, and cytidine and cytidine 5'-monophosphate (CMP) were the best ind
Composites of carbon nanotubes and conducting polymers can be prepared via chemical synthesis, electrochemical deposition on pre-formed carbon nanotube electrod
Nonlinear transport of intense continuous beam in the axial-symmetric electrostatic fields is analyzed with the Lie algebraic method.The K-V particle distributi
用热扩散法成功地把AgI组装于NaZSM5的孔道中,对制备的样品(NaZSM5)AgI进行了化学分析、粉末XRD分析、化学吸附、红外光谱表征,研究了所制备的样品固体扩散漫反射吸收光谱及
The chemical and physical interactions between ingredients in composites play an important role in the improvement of service prop-sity loss of isocyanate absor
Starting from a Backlund transformation and taking a special ansatz for the function f, we can obtain a much more generalexpression of solution that includes so