A Review on Synthesis, Structural, Flame Retardancy and Dielectric Properties of Hexasubstituted Cyclotriphosphazene

Abstract

Hexachlorocyclotriphosphazene is a ring compound consisting of an alternating phosphorus and nitrogen atom with two chlorine substituents attached to the phosphorus atom. The six chlorine atoms attached to this cyclo compound can be substituted with any different nucleophile that leads to changes in different chemical and physical properties. The major topics that were investigated in this research are the flame retardancy and dielectric properties of cyclotriphosphazene compounds. Cyclotriphosphazene compounds have high potential to act as a flame retardant, and this compound consists of two active elements attributed to its high flame-retardant character. This compound also demonstrated good ability as a flame retardant due to its low toxicity and less smoke produced. In addition, cyclotriphosphazene compounds were also investigated for their dielectric properties. Cyclotriphosphazene has high potential in the electrical field since it has dielectric properties that can be widely studied in the investigation of any potential application. This review presented literature studies focused on recent research development and studies in the field of cyclotriphosphazene that focused on synthesis, structural, flame retardancy, and dielectric properties of hexachlorocyclotriphosphazene compounds.

Preparation of Exfoliated Organo‐Montmorillonite and Its Effect on Flame Retardancy and Mechanical Properties of Polypropylene

“…A large amount of the FRs is required to achieve the optimum efficiency [17,18] . By contrast, phosphorous‐based FR has been widely studied and applied in the development of new flame retardants because of their advantages of low toxicity, environmental friendliness and strong molecular editing ability [19–21] …”

“…[17,18] By contrast, phosphorousbased FR has been widely studied and applied in the development of new flame retardants because of their advantages of low toxicity, environmental friendliness and strong molecular editing ability. [19][20][21] Halogen-free flame retardants, especially phosphorus-based flame retardants play an increasingly important role in flame retardants for their low toxicity, high efficiency and environmental friendliness. [22,23] APP is one of the essential phosphorusbased flame retardants.…”

Special Issue: Synthesis, Processing, Structure and Properties of Polymer Materials

“…In this Special Issue, 33 original articles have been published on various topics, including the preparation, characterization, and some examples of application of polymeric materials. This issue includes review articles [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ] and research articles [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ].…”

“…In the paper of Usri, Jamain and Makmud [ 1 ] methods for the synthesis of cyclotriphosphazene derivatives are outlined. The flame retardant and dielectric properties of various types of polymers doped with these compounds are also presented.…”

Fire Retardancy and Dielectric Strength of Cyclotriphosphazene Compounds with Schiff Base and Ester Linking Units Attached to the Electron-Withdrawing Side Arm

“…Based on the previous study, phosphorus- and nitrogen-containing molecules are outstanding compounds that have been demonstrated as excellent fire-retardant materials [ 17 , 18 ]. As a result, the modification of non-halogenated derivatives showed a rapidly growing interest in the research field related to fire-retardant and dielectric studies [ 19 , 20 ].…”