期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 39, 期 24, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201800604
关键词
aggregation-induced emission; explosive detection; fluorescent pattern; hyperbranched poly(phenyltriazolylcarboxylate)s; metal-free polycycloaddition
资金
- National Nature Science Foundation of China [21404077]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [17KJB150034]
- Priority Academic Program Development of Jiangsu High Education Institutions (PAPD)
- Jiangsu Planned Projects for Postdoctoral Research Funds [1501023B]
- China Postdoctoral Science Foundation [2016M591906]
The 1,3-dipolar cycloaddition of activated internal alkynes with azides has been developed into an efficient polymerization reaction for constructing functional linear 1,4,5-trisubstitued polytriazoles. However, it is rarely employed for the synthesis of hyperbranched polymers. In this work, metal-free polycycloadditions of tris(3-phenylpropiolate)s (1) and tetraphenylethene-containing diazides (2) are performed in dimethylformamide at 100 degrees C for 7 and 12 h, producing hyperbranched poly(phenyltriazolylcarboxylate)s (hb-PPTCs) with high molecular weights and satisfactory regioregularities in good yields. The hb-PPTCs have good solubility in common organic solvents and high thermal stability. They are non-emissive in solutions, but emit intensively upon aggregation, showing an aggregation-induced emission effect. Their aggregates can work as fluorescent sensors for explosive detection with high sensitivity. Furthermore, the polymers can be utilized for the fabrication of 2D fluorescent patterns with high resolution by UV irradiation through copper grid masks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据