Thermoresponsive coacervate formation of random poly(phosphonate) terpolymers

Wurm, Frederik R.; Rheinberger, Timo; Wurm, Frederik

doi:10.1016/j.eurpolymj.2017.05.048

Cited by 19 publications

(13 citation statements)

References 49 publications

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“…A 5-membered cyclic allyl phosphonate monomer (2-allyl-2oxo-1,3,2-dioxaphospholane, D14) was recently reported by Wurm and coworkers. 10,354 For cyclic phosphonates the pendant group was introduced in the first step of a three-step reaction (Scheme 25E): after reaction of allyl bromide with triethyl phosphite, allyl phosphonic acid dichloride was formed by reaction with chlorotrimethylsilane and oxalyl chloride. Ringclosing reaction with ethylene glycol formed the final phosphonate monomer with an overall yield of 28% after distillation (as for cyclic phosphates, purification of the highly strained monomers can reduce the yield).…”

Section: Cyclic Phosphonatesmentioning

confidence: 99%

Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups

2018

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Biodegradable polymers are of current interest and chemical functionality in such materials is often demanded in advanced biomedical applications. Functional groups often are not tolerated in the polymerization process of ring-opening polymerization (ROP) and therefore protective groups need to be applied. Advantageously, several orthogonally reactive functions are available, which do not demand protection during ROP. We give an insight into available, orthogonally reactive cyclic monomers and the corresponding functional synthetic and biodegradable polymers, obtained from ROP. Functionalities in the monomer are reviewed, which are tolerated by ROP without further protection and allow further post-modification of the corresponding chemically functional polymers after polymerization. Synthetic concepts to these monomers are summarized in detail, preferably using precursor molecules. Post-modification strategies for the reported functionalities are presented and selected applications highlighted.

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Section: Cyclic Phosphonatesmentioning

confidence: 99%

Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups

2018

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“…During the combustion of polymer, Fe ions will volatilize and release into the gas phase, and combine with the smoke compounds to make it sink, so as to achieve smoke suppression effect . In this case, it is conceived that if there would be a better flame retardancy of aramid fiber in TPU throw modification by iron diethyl phosphinate . However, there are few relevant literatures on its application in the field of flame retardancy.…”

Section: Introductionmentioning

confidence: 99%

“…28,29 In this case, it is conceived that if there would be a better flame retardancy of aramid fiber in TPU throw modification by iron diethyl phosphinate. 30 However, there are few relevant literatures on its application in the field of flame retardancy.…”

Section: Introductionmentioning

confidence: 99%

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Chen

Wei

Wang

et al. 2018

Polymers for Advanced Techs

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In this paper, a new type of flame retardant (AF‐Fe) based on para‐aramid fiber (AF) which was modified with iron diethyl phosphinate was applied for thermoplastic polyurethane elastomer (TPU). The flame‐retardant properties of TPU were tested using cone calorimeter test, smoke density test, and thermogravimetric analysis/infrared spectrometry. The cone calorimeter test showed that AF‐Fe can greatly reduce the heat release rate, total heat release, smoke factor, and other parameters of TPU composites compared with the sample of TPU/AF. For example, the pHRR of the composite with 1.0 wt% AF‐Fe was reduced by 15.19% compared with the sample with the same content of pure AF. In addition, the smoke factor of TPU/AFFe3 was reduced by 50.52% and 15.63% compared with TPU0 and TPU/AF respectively. The results of smoke density test showed that the luminous flux of TPU/AFFe3 was increased by 79.26% compared with the sample of TPU/AF. The TG results revealed that the sample with TPU/AFFe3 had lower weight loss rate and higher char residue content at 700°C compared with the sample of TPU/AF.

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“…2000 nm, as already observed for a related system. 30 With these results, we can propose a mechanism for the LCST phase separation of these poly(ethylene alkyl phosphonate) copolymers.…”

Section: Polymer Chemistry Papermentioning

confidence: 76%

“…15,20,21 Copolymerization of 2-alkyl-2-oxo-1,3,2-dioxaphospholanes was shown to produce random copolymers with material properties (solubility, T g ) dependent on the copolymer composition. 29,30 In this work, we study the LCST behavior of a series of novel copolymers of poly(ethylene alkyl phosphonate)s. Polymers with molecular weights between 7700 and 23 000 g mol −1 , narrow molecular weight distributions and adjustable copolymer compositions were prepared. The phase separation temperature of the resulting copolymers was dependent on the copolymer composition.…”

Section: Introductionmentioning

confidence: 99%

Temperature responsive poly(phosphonate) copolymers: from single chains to macroscopic coacervates

et al. 2018

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Thermoresponsive coacervate formation of random poly(phosphonate) terpolymers

Cited by 19 publications

References 49 publications

Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups

Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Temperature responsive poly(phosphonate) copolymers: from single chains to macroscopic coacervates

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