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Science China Chemistry 2008年第8期51卷 705-708页

作者： jim cathy k w LAM Jacky w Y HAEUSSLER Matthias Department of Chemistry The Hong Kong University of Science & TechnologyClear Water BayKowloonHong KongChina

This paper presents a new synthetic route to hyperbranched polymer. An arylene bipropiolate monomer,dimethylmethylenebis(1,4-phenylene) bipropiolate,was prepared by a one-step esterification reaction of bisphenol A with propiolic acid. Polycyclotrimrtization of the monomer was effected by reflux in dimethylformamide(DMF),producing a soluble hyperbranched poly(aroxycarbonylphenylene) in a good yield. The polymer was perfectly branched with a degree of branching of 100%.

关键词： cyclotrimerization regioselectivity hyperbranched polymer

Synthesis and properties of poly(1-phenyl-1-octyne)s containing stereogenic and chromophoric pendant groups

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Science China Chemistry 2009年第10期52卷 1691-1702页

作者： LAM Jacky w.Y. jim cathy k.w. kwOk Hoi Sing Department of Chemistry The Hong Kong University of Science & Technology Center for Display Research The Hong Kong University of Science & Technology

Poly(1-phenyl-1-octyne)s containing different stereogenic and chromophoric pendants {-[(C6H13)C=C(C6H4-p-CO2-R)]n-R=[(1S)-endo]-(-)-borneyl (P3), (1R,2S,5R)-(-)-menthyl (P4),―C6H4-p-(1R,2S,5R)-(-)-menthyl (P5), 2-napthyl (P6), 4-biphenylyl (P7)} have been designed and synthesized. The polymers are prepared in moderate yields by wCl6-Ph4Sn and possess high molecular weights (Mw up to 64000). The structures and properties of the polymers are characterized and evaluated by NMR, TGA, UV, CD, PL, and EL analyses. All the polymers are thermally stable and their temperatures for 5% weight loss locate in the range of 300 to 416℃ under nitrogen. The energy band gaps of all the polymers are ～3.0 eV. Polymers P4 and P5 show CD absorptions associated with the helicity of the polymer segments. Excitation of the THF solutions of P3―P7 by UV irradiation gives strong blue lights of ～485 nm with quantum yields higher than 20%. The thin films of the polymers also emit in the same spectral region, indicative of little aggregation-caused quenching of light emission. Multilayer EL devices with a configuration of ITO/Polymer:PVk/BCP/Alq3/LiF/Al are constructed, which emit blue lights of ～487 nm. The maximum luminance and external quantum efficiency vary with the pendant groups, with P6 exhibiting the highest external quantum efficiency of 0.16%. The spectra stability of the EL devices is outstanding and the EL peak maximum experiences little change with the applied voltage.

关键词： chiral photoluminescence polyacetylene electroluminescence helicity

SYNTHESIS OF A HYPERBRANCHED POLY(AROYLARYLENE) CONTAINING TRIAZOLE AND FLUORENE FUNCTIONALITIES BY CLICk CHEMISTRY AND METAL-FREE,REGIOSELECTIVE POLYCYCLOTRIMERIZATION

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Chinese Journal of Polymer Science 2009年第2期27卷 145-148页

作者： cathy k.w.jim Jacky w.Y.Lam 唐本忠 Department of Chemistry The Hong Kong University of Science & TechnologyClear Water BayKowloonHong KongChina Department of Polymer Science and Engineering Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of EducationZhejiang University

A new bis(aroylacetylene) containing tfiazole and fluorene moieties is synthesized by click chemistry. Polycyclotrimerization of the monomer is catalyzed by piperidine in refluxed dioxane,furnishing a regioregular poly(aroylarylene) in a satisfactory *** hyperbranched structure of the polymer is characterized spectroscopically with satisfactory *** polymer enjoys no metal detriment and is soluble in common organic solvents such as tetrahydrofuran (THF),chloroform,dichloromethane (DCM),and N,N-...

关键词： Regioregular Click chemistry Polycyclotrimerization Hyperbranched polymer.

Thiol-Yne Click Polymerization

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Thiol-Yne Click Polymerization

2011年全国高分子学术论文报告会

作者： cathy k.w.jim Department of Chemistry The Hong Kong University of Science ＆ TechnologyClear Water BayKowloonHong KongChina

＜正＞Azide-alkyne click polymerization has been a hot research topic because of the important role in plays in polymer chemistry and macromolecular *** have endeavored to develop this new polymerization *** this talk... 详细信息

关键词： Click polymerization regioselectivity stereoselectivity functional polymers

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Click Polymerization

Click Polymerization

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

2010年全国高分子材料科学与工程研讨会

作者： cathy k.w.jim Department of Polymer Science and Engineering Zhejiang University

＜正＞Cu（I）-catalyzed alkyne-azide cycloaddition,coined as"click chemistry"by Sharpless et al.,is a powerful synthetic tool and enjoys the features of high efficiency,regioselectivity,and functionality tolerance as well as mild reaction conditions,fast reaction rates,and simple product isolation *** reaction has found widespread applications in various research areas,for

关键词： Polymer Synthesis Regioregularity Functional Polymers Polytriazoles Hyperbranched Polymers

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化学学报 2016年第11期74卷 877-884页

作者：韩婷詹嘉慧林荣业唐本忠香港科技大学化学系国家人体组织功能重建工程技术研究中心香港分中心香港科技大学深圳研究院深圳518057

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... 详细信息

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4001700nm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．

关键词：线型聚炔聚集诱导发光四苯基乙烯折射率