Synthesis and Properties of Polyoxadiazoles

Keywords Polyoxadiazole, molecular weight, mechanical properties, thermal stability, sulfonation, composites, coating, corrosion, fuel cell, PEMFC, proton conductivity, carbon nanotubes 

There have been many misunderstandings as to how the well known chemically, thermally and mechanically stable polyoxadiazoles 

Vikas Mittal (ed.) High Performance Polymers and Engineering Plastics, (21-48) 

Method 2 Polymerization in solution of a dicarboxylic acid with a salt of hydrazine O O 

For this reason, the polyoxadiazole synthesis may present low reproducibility and different polymer materials may be produced at similar reaction conditions at actual lab-scale polymerization reactors [10]. These observed experimental fluctuations constitute a major drawback for the systematic use of polyoxadiazole in certain applications and for the design and scale-up of its synthesis. 

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N.C. Yang, Y.H. Park, and D.H. Suh, Synthesis and properties of new ultraviolet-blue-emissive fluorene-based aromatic polyoxadiazoles with confinement moieties, J. Polym. Sci., Part A Polym. Chem., 41 674-683, 2003. 

Synthesis and Properties. Polyoxadiazoles containing aromatic moieties with aliphatic linkages/groups have been widely explored in the literature. The aromatic moieties increase the rigidity of the polymer the presence of aliphatic groups makes the chain more flexible and processible. 

Yang NC, Chang S, Suh DH (2003) Synthesis and optically acid-sensory properties of novel polyoxadiazole derivatives. Polymer 44 2143-2148... 

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