We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Chemical Oxidative Condensation of Benzidine in Non-Aqueous Medium: Synthesis and Investigation of Oligomers and Polymer with Benzidine Diimine Units.
- Authors
Durgaryan, Ranush; Durgaryan, Narine
- Abstract
The oxidative condensation of benzidine has been carried out in acetic acid media using potassium peroxydisulfate as the oxidizing agent. Using different monomer–oxidant molar ratios, benzidine dimer, trimer, and polymer have been synthesized for the first time. It was established that the polybenzidine structure is composed from a sequence of benzidinediimine and diphenylene units with amino/amino end groups and thus proves the possibility of ammonia elimination during the oxidative polymerization of aromatic diamines. The method seems to be common for the synthesis of polymers with the sequence of aromatic diimine and arylene units. TGA analysis of the obtained trimer and polymer was investigated, and the high thermostability of both the polymer and trimer was revealed. According to the obtained data, both polymer and trimer matrix decomposition started at 300 °C, and at 600 °C, 75.94% and of 69.40% of the initial weight remained, correspondingly. Conductivities of the polymer and trimer show a semiconductor-type change from temperature and after doping show an increase in conductivity up to 10−4 Sm/cm.
- Subjects
OLIGOMERIZATION; CONDENSATION reactions; BENZIDINE; POLYMERS; MATRIX decomposition; OLIGOMERS
- Publication
Polymers (20734360), 2022, Vol 14, Issue 1, p34
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym14010034