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Novel Hyperbranched Poly([1,2,3]-triazole)s Derived from AB2 Monomers by a 1,3-Dipolar Cycloaddition

✍ Scribed by Arnulf J. Scheel; Hartmut Komber; Brigitte I. Voit

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
135 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: Novel hyperbranched poly([1,2,3]‐triazole)s were synthesized from several AB~2~ monomers by a 1,3‐dipolar cycloaddition reaction. The compound 3,5‐bis(propargyloxy)benzyl azide was polymerized thermally at room temperature leading to 1,4‐ and 1,5‐disubstituted poly([1,2,3]‐triazole) and catalytically leading only to the 1,4‐disubstituted poly([1,2,3]‐triazole). Only the thermal reaction led to fully soluble products. The AB~2~ monomers containing an internal alkyne A unit could be autopolymerized thermally under mild reaction conditions leading to soluble, high‐molecular‐weight hyperbranched poly([1,2,3] triazole)s. All products were characterized by detailed NMR investigations.

Synthesis route for polymers 8a and 8b.

imageSynthesis route for polymers 8a and 8b.

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