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Polytriazoles Constructed by 1,3-Dipolar Cycloaddition用1,3-偶極環加成構建聚三唑共軛聚合物

The present invention relates to the construction of hyperbranched polytriazoles and linear and hyperbranched poly(aroyltriazole)s by Huisgen 1,3-dipolar polycycloaddition. The polymers were prepared by A2 + B3 methodology to avoid self-polymerization during monomer preparation and storage. A new class of polymers, poly(aroyltriazole)s, has been developed. The polymers were obtained in high yield (up to 92.0%), with high molecular weight (up to 26000) and high regioselectivity (the ratio of 1,4- and 1,5-disubstituted 1,2,3-triazole is equal or larger than 9). The polymerization procedure is not sensitive to moistures or oxygen. The polymers are light emissive and can be crosslinked to generate well-resolved photopatterns upon UV irradiation. White light emission patterns were observed with fluorescence microscopy. All the polymers are processible, easily film-forming, transformable (curable) into thermosets by heat or irradiation.
Technology Benefits
1. A new way to realize processable functional polytriazoles
2. A new simple synthetic method to prepare processable poly(aroyltriazole)s
Technology Application
- Opto-electric applications (polymer organic light-emitting diodes; two photon absorption)
- Thermal curable materials
- Precursor to ferromagnetic ceramics
Supplementary Information
Patent Number: US7772358B2
Application Number: US2007896675A
Inventor: Tang, Benzhong | Qin, Anjun | Haeussler, Matthias
Priority Date: 6 Sep 2006
Priority Number: US7772358B2
Application Date: 5 Sep 2007
Publication Date: 10 Aug 2010
IPC Current: C08G007308 | C07C024702 | C07C024716
US Class: 528268 | 528422 | 528423 | 544180 | 552008 | 552011
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Polytriazoles constructed by 1,3-dipolar cycloaddition
Usefulness: Polytriazoles constructed by 1,3-dipolar cycloaddition
Summary: Method for the synthesis of hyperbranched polytriazoles used for manufacturing integrated circuits, and for electron transporting materials in electronic devices.
Novelty: Synthesis of polytriazoles involves reacting separate azide monomers and acetylene monomers by 1,3-dipolar cycloaddition, and polymerizing by refluxing monomers in organic solvent
Sub Category
Chemical/Material Application
Application Date
5 Sep 2007
Application No.
US 11/896675
Patent Information
US 7772358
ID No.
Hong Kong

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