NDLI: Synthesis and characterization of a novel cyanostilbene derivative and its initiated polymers: aggregation-induced emission enhancement behaviors and light-emitting diode applications

Content Provider	Royal Society of Chemistry (RSC)
Author	Jia, Wenbin Li, Junjie Ge, Zhishen Yang, Jiaxiang Wu, Yongzhong Yang, Peng Lu, Hongbo Yin, Zhengmao Kong, Lin Hao, Xiaopeng
Copyright Year	2014
Abstract	A novel cyanostilbene derivative (I) is synthesized and sufficiently characterized, which is also utilized as the initiator to prepare poly(ε-caprolactone) (I-PCL) and poly(D,L-lactide) (I-PLA) via ring-opening polymerization (ROP). Notably, molecule I exhibits superior aggregation-induced enhanced emission (AIEE) behavior in the mixed solvent of THF and water. The bulky cyano groups are linked to vinylene moieties in molecule (I) generating intramolecular coplanarity and preventing π–π stacking, which leads to enhanced emission in the aggregated state. Crystallographic data of I confirm that the existence of multiple intermolecular interactions among adjacent molecules restricts intramolecular vibration and rotation. In addition, molecule I can self-organize into ordered microtubes in appropriate THF/water mixtures exhibiting significant optical waveguide properties. Furthermore, the polymers, I-PCL and I-PLA, also show AIEE behaviors since the single chromophore I is anchored on the polymer chains. As compared with the corresponding small molecule I, the target polymers possess not only preferable thermostabilities but also the property of easy fabrication. The luminogen aggregation of the initiator is well-realized and even enlarged after polymerization, due to the linkage of polymer chains. In the end, the polymer I-PLA has a great prospect in white light-emitting diode (LED) application, which emits daylight white light.
Starting Page	2282
Ending Page	2292
Page Count	11
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	5
Issue Number	7
Journal	Polymer Chemistry
DOI	10.1039/c3py01550e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Caprolactone THF Waveguide (optics) American Institute of Electrical Engineers Vinylene group Ring-opening polymerization Coplanarity Polymerization Polymer Solvent Light-emitting diode Chromophore
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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