Volume 18, Issue 1 (12-2023)
مواد پرانرژی 2023, 18(1): 27-38 |
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Malek-Ashtar University , Reza_fareghi@yahoo.com
Abstract: (408 Views)
Using antioxidants in the composite propellants' formulations is inevitable. These materials are added to the propellant in order to increasing its stability during the storage and maintenance. In this paper, a simple, new and efficient method for the synthesis of some phenolic antioxidants from the reaction of 2-tert-butyl-4-methyl phenol with a variety of aliphatic and aromatic aldehydes in the presence of Lewis acids has been described. Phenolic products have been synthesized in mild, simple and safe method. The products have been characterized by their melting points as well as IR, 1HNMR and 13CNMR spectroscopies. In addition to high purity and high yields of the products, not needing to use of common corrosive, inorganic acids and the surfactant (generally sodium dodecyl sulfate), together with the simplicity and safety are as advantages of the present method.
Article number: 3
Keywords: Composite solid propellant, Phenolic antioxidants, Condensation reaction, Lewis acid catalyst, Zirconium tetrachloride, Bisphenolic compounds
Type of Study: Research |
Subject:
سنتز، آناليز، کنترل کيفيت، فرمولاسيون و فرايندهاي توليد مواد پرانرژی (منفجره، پيروتکنيک و پيشرانه)
Published: 2023/12/14
Published: 2023/12/14
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