Flame retardant phosphonate-functionalised polyethylenes

Blake, Neil; Turner, Zoë R.; Buffet, Jean-Charles; O’Hare, Dermot

doi:10.1039/d3py00143a

Polym. Chem.

2023

DOI: 10.1039/d3py00143a

|View full text |Cite

Flame retardant phosphonate-functionalised polyethylenes

Neil Blake

Zoë R. Turner

Jean-Charles Buffet

et al.

Abstract: The two-step synthesis of phosphonate-functionalised polyethylenes with enhanced thermal and flame retardant properties has been developed. Solution phase copolymerisation of ethylene and 11-bromo-1-undecene using the commercial available early transition metal...

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article4

Relationship

Self Cite0

Independent4

Authors

Journals

Cited by 4 publications

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Functionalized Polypropylenes: A Copolymerization and Postmodification Platform

Evans,

Casale,

Morris

et al. 2024

Macromolecules

View full text Add to dashboard Cite

Functional polypropylenes (FPs) are regarded as versatile building blocks for next-generation materials; however, their development has been stymied due to current synthetic limitations. Here, we report a diverse range of functionalized polypropylenes prepared via a two-step copolymerization−postmodification strategy. Solution-phase copolymerization of propylene and 11-bromo-1-undecene using C 2 , C 1 , and C s -symmetric catalysts-afforded poly(propylene)-co-(11-bromo-1-undecene), with tunable comonomer incorporation levels, up to 15.5 mol %, with a range of tacticities (iso-, syndio-, and atactic) and a wide molecular weight span (4−212 kg mol −1 ). The latent electrophilic reactivity of the pendent bromide has been utilized in one of three general synthetic routes, enabling the incorporation of an array of polar substituents through the formation of a series of covalent connections (C−O, C−N, C−S, C−P, and C−C). The resulting FPs display distinctly altered bulk and surface properties, compared to polypropylene: improved thermal stability and adhesion to metal, altered wettability, and latent reactivity. This strategy allows access to FPs with both high molecular weight and chosen tacticity, taking advantage of well-developed metallocene catalysts and classical organic substitution chemistry.

show abstract

Functionalized Polypropylenes: A Copolymerization and Postmodification Platform

Evans,

Casale,

Morris

et al. 2024

Macromolecules

View full text Add to dashboard Cite

show abstract

Post-Polymerization Modification of Polystyrene through Mn-Catalyzed Phosphorylation of Aromatic C(sp²)–H Bonds

Liu,

Lin,

Zou

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

The high flammability and lack of charrability of polystyrene (PS) pose significant limitations on its broader applications. Therefore, there is an urgent need for a straightforward and efficient method for the synthesis of flame-retardant PS, which still poses a considerable challenge. In this study, we present an efficient approach to enhance the flame-retardant properties of PS through direct phosphorylation of aromatic C(sp 2 )−H bonds using commercially available and inexpensive manganese catalyst. A range of phosphonates served as reactive substrates to enable a tunable degree of polymer functionalization. The corresponding phosphorylated PS specimens were determined by means of 1 H NMR, 31 P NMR, FTIR spectroscopy, and size exclusion chromatography. Microscale combustion calorimetry tests indicate that this protocol indeed enhances the flame-retardant performance of PS. Moreover, other advantages associated with the incorporation of the phosphonate group have been observed, including maintained thermal resistance and improved wettability. This cost-effective strategy of Mn-catalyzed C−H can also be utilized to directly obtain phosphonate modification of waste foamed PS and styrene acrylonitrile copolymer, providing a method for the purpose of recycling and upgrading PS plastics.

show abstract

Copolymerization of Ethylene With Polar Monomers by Group 4 Catalysts

Li,

Guo,

et al. 2024

Polymer Reviews

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Flame retardant phosphonate-functionalised polyethylenes

Abstract: The two-step synthesis of phosphonate-functionalised polyethylenes with enhanced thermal and flame retardant properties has been developed. Solution phase copolymerisation of ethylene and 11-bromo-1-undecene using the commercial available early transition metal...

Cited by 4 publications

References 80 publications

Functionalized Polypropylenes: A Copolymerization and Postmodification Platform

Functionalized Polypropylenes: A Copolymerization and Postmodification Platform

Post-Polymerization Modification of Polystyrene through Mn-Catalyzed Phosphorylation of Aromatic C(sp²)–H Bonds

Copolymerization of Ethylene With Polar Monomers by Group 4 Catalysts

Contact Info

Product

Resources

About

Flame retardant phosphonate-functionalised polyethylenes

Abstract: The two-step synthesis of phosphonate-functionalised polyethylenes with enhanced thermal and flame retardant properties has been developed. Solution phase copolymerisation of ethylene and 11-bromo-1-undecene using the commercial available early transition metal...

Cited by 4 publications

References 80 publications

Functionalized Polypropylenes: A Copolymerization and Postmodification Platform

Functionalized Polypropylenes: A Copolymerization and Postmodification Platform

Post-Polymerization Modification of Polystyrene through Mn-Catalyzed Phosphorylation of Aromatic C(sp2)–H Bonds

Copolymerization of Ethylene With Polar Monomers by Group 4 Catalysts

Contact Info

Product

Resources

About

Post-Polymerization Modification of Polystyrene through Mn-Catalyzed Phosphorylation of Aromatic C(sp²)–H Bonds