Thermal polycondensation of hexakis(p-acetylphenoxy)-cyclotriphosphazene

Chistyakov, Evgeniy M.; Бузин, М. И.; Aksenov, Sergey M.; Tupikov, A. S.; Киреев, В. В.

doi:10.1016/j.mencom.2019.01.034

Cited by 6 publications

(3 citation statements)

References 18 publications

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“…Several synthetic approaches have been devised for the preparation of cyclotriphosphazene, involving the chemical modification of cyclotriphosphazenes through reactive functional groups [ 1 ]. These strategies yield prepolymers with versatile applications, including but not limited to coatings, adhesives, composites, anticancer medications [ 2 , 3 ], tumor growth inhibitors, flame retardants [ 4 , 5 , 6 ], biologically active molecules [ 7 , 8 , 9 ], antimicrobial reagents [ 10 ], organic light emitting diodes [ 10 , 11 , 12 ], catalysis [ 13 , 14 ], fluorescent dyes [ 15 , 16 , 17 ], polymerization [ 18 , 19 , 20 , 21 , 22 ], gas separation membranes [ 23 ], medicinal chemistry [ 24 ], lubricant additives [ 25 ], and inorganic chemistry [ 1 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Progress in the Field of Cyclophosphazenes: Preparation, Properties, and Applications

Dagdag,

Kim

2023

Polymers

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This review article provides a comprehensive overview of recent advancements in the realm of cyclophosphazenes, encompassing their preparation methodologies, distinctive properties, and diverse applications. The synthesis approaches are explored, highlighting advancements in the preparation of these cyclic compounds. The discussion extends to the distinctive properties exhibited by cyclophosphazenes, including thermal stability characteristics, and other relevant features. Furthermore, we examine the broad spectrum of applications for cyclophosphazenes in various fields, such as coatings, adhesives, composites, extractants, metal complexes, organometallic chemistry, medicine, and inorganic chemistry. This review aims to offer insights into the evolving landscape of cyclophosphazenes and their ever-expanding roles in contemporary scientific and technological arenas. Future possibilities are emphasized, and significant research data shortages are identified.

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Section: Introductionmentioning

confidence: 99%

Progress in the Field of Cyclophosphazenes: Preparation, Properties, and Applications

Dagdag,

Kim

2023

Polymers

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“…10,14 Recently, new kinds of polymeric matrix for EHSMs have gained great attention to researchers. Than is, polyphosphazenes (with inorganic backbone of "─P═N─") can be maneuvered as EHSMs by introducing different substituents to obtain different functional polymers such as higher hydrophobicity property, 18 higher glass transition temperature and higher char yield, 19 and low water absorption and solubility. 20 Poly(diaryloxyphosphazenes) (PDPP), an inorganic-organic macromolecule with substituent of aryloxy group is anticipated to serve as an effective alternative polymeric matrix for EHSMs due to its high char yield, excellent flame retardant property, low heat release capacity and low-density smoke.…”

Section: Introductionmentioning

confidence: 99%

Performances of novel poly(diaryloxyphosphazene) based heat shielding materials with various fibrous reinforcements

Zhang

Basharat

et al. 2021

J of Applied Polymer Sci

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Elastomeric heat shielding materials (EHSMs) are necessary to protect combustion chambers of solid rocket motors during their working.Poly(diaryloxyphosphazene) (PDPP) elastomers own inherent thermal stability and flame retardancy because the backbone of alternating phosphorus and nitrogen atoms can be a novel promising polymer matrix toward EHSMs. The present study deals with the development of a novel PDPP based EHSMs with several different fibrous reinforcements, including Kevlar, polyimide, and carbon short fibers. It is found that PDPP/Kevlar composites show outstanding tensile strength and ablation resistance because of their strong interfacial bonding between matrix and fibers which benefits from the possible network of intermolecular hydrogen bonds. PDPP/carbon composites produce a compact charred layer due to their high char yields of carbon fibers. These results improve the understanding of the role of polyphosphazenes with different kinds of fibers on ablation mechanisms, which enable the possibility to exploit intrinsic properties of polyphosphazenes.

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“…For example, highly efficient lithium ion batteries are produced using chitosan, a natural renewable polymer [1]. Phosphazene-containing polybenzoxazines and epoxy resins serve as binders for non-combustible polymer composites [2,3] and condensation of some aryloxyphosphazenes results in the formation of thermally stable matrix polymers [4,5]. Silsesquioxane-siloxanes are excellent modifying agents for dental materials [6].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Degree of Crystallinity of Poly(2-methyl-2-oxazoline)

et al. 2021

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A new method for purification of 2-methyl-2-oxazoline using citric acid was developed and living cationic ring-opening polymerization of 2-methyl-2-oxazoline was carried out. Polymerization was conducted in acetonitrile using benzyl chloride—boron trifluoride etherate initiating system. According to DSC data, the temperature range of melting of the crystalline phase of the resulting polymer was 95–180 °C. According to small-angle X-ray scattering and wide-angle X-ray diffraction data, the degree of crystallinity of the polymer was 12%. Upon cooling of the polymer melt, the polymer became amorphous. Using thermogravimetric analysis, it was found that the thermal destruction of poly(2-methyl-2-oxazoline) started above 209 °C.

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Thermal polycondensation of hexakis(p-acetylphenoxy)-cyclotriphosphazene

Cited by 6 publications

References 18 publications

Progress in the Field of Cyclophosphazenes: Preparation, Properties, and Applications

Progress in the Field of Cyclophosphazenes: Preparation, Properties, and Applications

Performances of novel poly(diaryloxyphosphazene) based heat shielding materials with various fibrous reinforcements

Determination of the Degree of Crystallinity of Poly(2-methyl-2-oxazoline)

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