具有聚集诱导发光效应的聚炔材料的合成及光学性能研究
收稿日期: 2016-07-16
网络出版日期: 2016-08-24
基金资助
项目受国家基础研究发展规划项目（973项目；2013CB834701，2013CB834702），香港大学教育资助委员会（AoE/P-03/08），国家自然科学基金（21490570和21490574），香港研究资助局（604913，16305014，16303815）及创新科技署（ITC-CNERC14S01）资助.同时感谢广东省创新科研团队项目（201101C0105067115）资助.
Polyynes with Aggregation-Induced Emission Characteristics: Synthesis and Their Photonic Properties
Received date: 2016-07-16
Online published: 2016-08-24
Supported by
Project supported by the National Basic Research Program of China (973 Program; 2013CB834701, 2013CB834702), the University Grants Committee of Hong Kong (AoE/P-03/08), the National Natural Science Foundation of China (21490570, 21490574), the Research Grants Council of Hong Kong (604913, 16305014 and 16303815), and the Innovation and Technology Commission (ITC-CNERC14S01). B.Z.T. thanks the support of the Guangdong Innovative Research Team Program (201101C0105067115).
合成了三种含有四苯基乙烯结构的双炔烃.这些双炔烃单体通过在CuCl催化下在邻二氯苯中进行的均聚反应可以高产率地生成线型聚炔.所得聚合物均可很好地溶解于常见有机溶剂中，并具有很高的热稳定性.这类聚炔材料在溶液态时几乎不发光，但在聚集态或者固态下可高度发光，表现出典型的聚集诱导发光性质.同时，这些聚合物具有高透光性，可以允许整个可见光区的光透过.其薄膜在400～1700 nm宽波长范围内表现出高折射率（n=1.7787～1.6543）和低色差（D'=0.0003）.紫外光照射可诱使聚合物薄膜发生交联过程，从而调控其折射率数值，并可生成高分辨率的荧光图案.
韩婷 , 詹嘉慧 , 林荣业 , 唐本忠 . 具有聚集诱导发光效应的聚炔材料的合成及光学性能研究[J]. 化学学报, 2016 , 74(11) : 877 -884 . DOI: 10.6023/A16070348
Tetraphenylethene-containing diacetylenes are synthesized and their homopolymerizations are catalyzed by CuCl in o-dichlorobenzene, furnishing linear polyynes in high isolated yields. All polymers possess good solubility in common organic solvents and enjoy high thermal stability. Whereas they are practically non-emissive when molecularly dissolved in good solvents, they become highly emissive when aggregated as nanoparticle suspensions in poor solvents or fabricated into thin films in the solid state, demonstrating a novel phenomenon of aggregation-induced emission. The polymers are highly transparent, allowing almost all light in the entire visible spectral region to transmit through. Thin films of the polymers show high refractive indices (n=1.7787~1.6543) in the wavelength region of 400~1700 nm and very low chromatic aberrations (D'=0.0003). Their n values can be modulated and their thin films can be crosslinked by UV irradiation, generating fluorescent patterns with high resolutions.
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