New hybrid materials based on cyclophosphazene and polysiloxane precursors: Synthesis and properties

Ханин, Д. А.; Kononevich, Yuriy N.; Temnikov, Maxim N.; Morgalyuk, V. P.; Васильев, В. Г.; Popov, A. Yu.; Brel, V. K.; Папков, В. С.; Muzafarov, А. М.

doi:10.1016/j.polymer.2019.122011

Cited by 19 publications

(12 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inclusion of heteroatoms in the porous framework is an appropriate way to improve the performance of materials by enhancing the interactions between the host and guest molecules. , A widely studied porous polymer scaffold based on a silicone nucleus has demonstrated an effective improvement in gas sorption, catalysis, and sensing. − The inclusion of silicone has improved the performance, but maintaining permanent porosity, compact structure, and high surface area is still a challenging task . Hence, there is a need to develop strategies to obtain a stable hybrid system with low skeletal density and high mechanical and thermal stability.…”

mentioning

confidence: 99%

Eco-Friendly Phosphorus and Nitrogen-Rich Inorganic–Organic Hybrid Hypercross-linked Porous Polymers via a Low-Cost Strategy

et al. 2021

View full text Add to dashboard Cite

mentioning

confidence: 99%

Eco-Friendly Phosphorus and Nitrogen-Rich Inorganic–Organic Hybrid Hypercross-linked Porous Polymers via a Low-Cost Strategy

et al. 2021

View full text Add to dashboard Cite

“…Hexachlorocyclotriphosphazene has been used as a versatile building block for the development of new polymers, , gels, , macromolecular drug carriers, dendrimers, , biodegradable materials, and bowl-shaped dendrimers , because its six chlorine atoms can be easily substituted with nucleophilic phenolate groups . The resulting hexaphenoxycyclotriphosphazene core is also an interesting building block for new porous materials due to its shape and synthetic versatility.…”

Section: Resultsmentioning

confidence: 99%

Intrinsically Porous Polydiacetylene from a Functionalized Bowl-Shaped Hexaphenoxycyclotriphosphazene Derivative

Tahir

Harati

Nyayachavadi

et al. 2020

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Intrinsic porosity in polymeric materials arises from the formation of a continuous network of interconnected voids and is a direct consequence of the shape and rigidity of the molecular building blocks. To obtain well-defined pores with narrow size distributions, the polymerization of rigid and sterically hindered monomers must not interfere with the pore formation and should avoid the use of additives that may occupy voids. Polydiacetylenes can be generated by the topochemical polymerization of diacetylene-bearing molecules favorably arranged in crystals, gels, thin films, or vesicles. Polydiacetylene formation in amorphous materials has been sparsely studied because higher-order self-assembled structures are assumed to be required for the topochemical polymerization of 1,3-butadiyne to occur. In this study, a bulky hexachlorocyclotriphosphazene core (N3P3Cl6) was functionalized with six diacetylene-containing alkyl chains and successfully converted to an intrinsically porous multifunctional polydiacetylene. The successful formation of the polydiacetylene was confirmed by Raman spectroscopy, and the porous structure of the resulting materials was verified by X-ray diffraction and Brunauer–Emmett–Teller surface area measurements. This investigation revealed a significant change in the porous structure after polymerization, leading to a 5-fold increase in specific surface area. Overall, the topochemical polymerization of diacetylenes is a promising strategy for the preparation of functional materials, which is shown to be compatible with rather amorphous phases of bulky molecules. The results obtained from this investigation give access to a range of porous polydiacetylene materials for potential applications in organic electronics, gas adsorption, and other related fields.

show abstract

“…This allylamine substituted precursor is stable and can be stored over a long period of time. To attach the silane groups necessary for silica particles preparation, a thiol-ene photoreaction was performed to inset the silane groups containing (3-mercaptopropyl)trimethoxy silanes to the double bonds [ 21 , 24 ]. The photochemical reaction is fast and quantitative, hence the product can be used directly for the particle synthesis.…”

Section: Resultsmentioning

confidence: 99%

“…For the preparation of cyclotriphosphazene-containing materials, hexachlorocyclotriphosphazene is commonly used as starting precursor, followed by the substitution of chlorine atoms using (mostly) organic side groups. Moreover, cyclotriphosphazenes can be functionalized for example with various alkoxysilanes to increase their introduction in the sol-gel process [ 19 , 20 , 21 ], particularly, for various promising applications as bio-applied dendrimers [ 17 ], in photoelectronics [ 22 ] and as flame retardants [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor

Poscher

Pappas

Brüggemann

et al. 2020

IJMS

View full text Add to dashboard Cite

Porous organosilica microparticles consisting of silane-derived cyclophosphazene bridges were synthesized by a surfactant-mediated sol-gel process. Starting from the substitution of hexachlorocyclotriphosphazene with allylamine, two different precursors were obtained by anchoring three or six alkoxysilane units, via a thiol-ene photoaddition reaction. In both cases, spherical, microparticles (size average of ca. 1000 nm) with large pores were obtained, confirmed by both, scanning and transmission electron microscopy. Particles synthesized using the partially functionalized precursor containing free vinyl groups were further functionalized with a thiol-containing molecule. While most other reported mesoporous organosilica particles are essentially hybrids with tetraethyl orthosilicate (TEOS), a unique feature of these particles is that structural control is achieved by exclusively using organosilane precursors. This allows an increase in the proportion of the co-components and could springboard these novel phosphorus-containing organosilica microparticles for different areas of technology.

show abstract

New hybrid materials based on cyclophosphazene and polysiloxane precursors: Synthesis and properties

Cited by 19 publications

References 45 publications

Eco-Friendly Phosphorus and Nitrogen-Rich Inorganic–Organic Hybrid Hypercross-linked Porous Polymers via a Low-Cost Strategy

Eco-Friendly Phosphorus and Nitrogen-Rich Inorganic–Organic Hybrid Hypercross-linked Porous Polymers via a Low-Cost Strategy

Intrinsically Porous Polydiacetylene from a Functionalized Bowl-Shaped Hexaphenoxycyclotriphosphazene Derivative

Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor

Contact Info

Product

Resources

About