Investigation of the interfacial bonding in composite propellants. 1,3,5-trisubstituted isocyanurates as universal bonding agents

Abstract

A series of 1,3,5-trisubstituted isocyanurates (substituents: CH2CH2OH CH2CH=CH2 and CH2CH2COOH) was synthesized according to a modified literature procedure. Experimental investigations included modification of the synthetic procedure in terms of the starting materials, solvents, temperature isolation techniques, as well as purification and identification of the products. All the synthesized isocyanurates were identified by their melting point and FTIR, 1H NMR and UV spectroscopic data. Fourier transform infrared spectrophotometry was also used to study the interaction between ammonium perchlorate, hydroxyl terminated poly(butadiene), carboxyl terminated poly(butadiene), poly(butadiene-co-acrylonitrile), poly(propylene ether) cyclotrimethylenetrinitramine and the compounds synthesized in this work which can serve as bonding agents. The results show that tris(2-hydroxyethyl)isocyanurate is a universal bonding agent for the ammonium perchlorate/carboxyl terminated poly(butadiene)/cyclotrimethylenetrinitramine composite propellant system.

1,3,5-Trisupstituisani izocijanurati (supstituenti: CH2CH2OH, CH2CH=CH2 i CH2CH2COOH) su sintetizovani koristeći modifikovane literaturne postupke. Pri tome su menjani reaktanti, rastvarači, temperatura, način izolovanja kao i način prečišćavanja proizvoda. Svi dobijeni izocijanurati su okarakterisani temperaturama topljenja, FTIR, 1H NMR i UV podacima. FTIR je takođe korišćen za proučavanje interakcija između amonijumperhlorata, poli(butadiena) sa hidroksi i karboksi krajnjim grupama, poli(butadien-ko-akrilonitrila) poli(propilenetra), ciklotrimetilennitramina i jedinjenja sintetizovanih u ovom radu koji mogu poslužiti kao vezivni agensi.