Modification of SEBS rubber via iron-mediated AGET ATRP in the presence of limited amounts of air

Xu, Wei; Cheng, Zhenping; Zhang, Zhengbiao; Zhang, Lifen; Zhu, Xiulin

doi:10.1016/j.reactfunctpolym.2011.03.008

Cited by 23 publications

(8 citation statements)

References 48 publications

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“…Although multidentate amine ligands are prolific as supports for copper-mediated reversible deactivation radical polymerisation, their use in Fe-mediated RDRP is much more limited. While multidentate frameworks featuring amines alongside other more prominent donors have been featured, 54,80,82,[114][115][116]135 other amine donors used in RDRP include: tri(n-butyl)amine, N n Bu3 53,80,105,120,136 and derivatives HN n Bu2 and H2N n Bu, 105 hexadecyltrimethyl amine, HTMA, 127 hexamethylene tetramine, HMTA, 137 tris(3,6-dioxaheptyl)amine, TDA, 95,100,[138][139][140][141][142][143][144][145][146][147][148] tetramethylethylenediamine, TMEDA, 82,127 tetraethylethylenediamine, TEEDA, 132 tetramethylpropane-1,3diamine, TPDA, 80 tetradentate bis(amine)bis(pyridine) ligands 149 N,N,N',N'',N'''penta(methylacrylate)diethylenetriamine, MA5DETA 150,151 and N,N,N',N'',N''-pentamethyldiethylenetriamine, PMDETA. 56,57,96,105,152 Beyond simple mono-and multi-dentate amine ligands, several interesting examples of amine-supported iron complexes have been reported.…”

Section: Amine Ligandsmentioning

confidence: 99%

“…While some investigation has been carried out on substituted styrenes, 132,136,156,164 the (meth)acrylate monomers have been more widely explored. Simple methyl and butyl (meth)acrylate monomers including methyl acrylate, 82,105,107,111,132,[165][166][167]192,215,222 n-butyl acrylate, 107,111,154,165,167,179,181,192,202,228 t-butyl acrylate, 95,119,165,167 n-butyl methacrylate 68,71,77,[82][83][84]149,182 and t-butyl methacrylate 173 have been expanded to include benzyl methacrylate 106 and long-chain alkyl acrylates such as stearyl methacrylate, 121,122 hexadecyl methacrylate 128 and docosyl acrylate. 125,129 Polymerisation of functionalised acrylates has also been achieved, with reports on the iron mediated RDRP of di(ethylene glycol) ethyl ether acrylate,…”

Section: Monomer and Macrostructure Scopementioning

confidence: 99%

See 1 more Smart Citation

Iron-mediated reversible deactivation controlled radical polymerization

Poli

Allan

Shaver

2014

Progress in Polymer Science

127

117

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Metal-mediated reversible deactivation radical polymerisation (RDRP) is now a cornerstone of functional polymer synthesis, dominated by copper complexes and the Atom Transfer Radical Polymerisation (ATRP) moniker. A limitation of this approach is the contamination of the resultant polymers by the coloured copper complexes, requiring purification steps, although protocols to reduce the amount of copper catalyst have been developed. Iron is an interesting alternative because of its low cost, low toxicity and reduced intensity of its optical absorption spectrum. Use of this metal in RDRP began in the late 90s and has continuously intensified. This review comprehensively covers all the work reported so far on RDRP mediated by iron complexes, organised according to ligand type, and discusses the specificities of this metal in terms of the multitude of accessible spin states and the interplay of different equilibria: atom transfer vs. direct radical trapping, associative vs. dissociative exchange, chain transfer by direct β-H atom transfer vs. β-H elimination from the dormant alkyl species.

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Section: Amine Ligandsmentioning

confidence: 99%

Section: Monomer and Macrostructure Scopementioning

confidence: 99%

Iron-mediated reversible deactivation controlled radical polymerization

Poli

Allan

Shaver

2014

Progress in Polymer Science

127

117

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“…O‐SEBS–PP can be used to prepare automotive interiors. It satisfies the lightweight requirements of automobiles and meets the soft‐touch requirements of high‐level automotive interiors . However, O‐SEBS–PP material is easily burned.…”

Section: Introductionmentioning

confidence: 99%

Thermal behaviors and flame retardancy of novel flame‐retardant, oil‐filled styrene–ethylene–butadiene–styrene block copolymer–polypropylene materials

Xiao²,

Cui

et al. 2018

J of Applied Polymer Sci

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A novel halogen‐free flame‐retardant material consisting of a novel cyclotriphosphazene‐based char‐forming agent, aluminum diethyl phosphinate, nickel trioxide (Ni2O3), an oil‐filled styrene–ethylene–butadiene–styrene block copolymer, and polypropylene was studied. On the basis of their UL‐94 ratings and limiting oxygen index (LOI) data, the flame retardants exhibited very effective flame‐retardant properties in the material. When the loading of flame retardant (FR) was only 35 wt %, the flame‐retardant material attained a UL‐94 V‐0 (1.6 mm) rating, and its LOI value reached 31%. The thermogravimetric analysis data indicated that the flame retardant effectively reduced the peak mass loss because of the formation of abundant char residue. Moreover, the flammability parameters of the material obtained from UL‐94, LOI, and cone calorimetry tests demonstrated that the fire safety performance of the material with Ni2O3 obviously improved. The morphological structure of the char residue of the material with the flame retardant and Ni2O3 showed a dense and continuous carbon layer. The high‐quality carbon layer formed on the surface of the polymer material matrix showed a heat‐insulating effect. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46888.

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“…Poly(isobutylene‐ co ‐isoprene) or butyl rubber (IIR) containing isobutylene and ∼2% of isoprene has played an important role in tire and adhesive industries due to its unique properties such as high damping properties, excellent ageing resistance, and low gas permeability . However, its nonpolar polymer chains limit its interaction with other polar materials . Thus, there has been a long‐term interest in investigating the chemical modification of IIR to enhance its polarity and reactivity and broaden its applications.…”

Section: Introductionmentioning

confidence: 99%

“…The maximum graft efficiency of 93% was obtained at 90 °C for 20 h, with the ratio of EPDM‐Br/CuBr/bpy of 1/0.8/2.4 . With chloromethylated polystyrene‐ b ‐poly(ethylene‐ co −1‐butene)‐ b ‐polystyrene (SEBS‐Cl) as a macroinitiator, Xu et al . synthesized SEBS triblock copolymers by using activators generated by electron transfer (AGET) ATRP.…”

Section: Introductionmentioning

confidence: 99%

Graft copolymerization of methyl methacrylate from brominated poly(isobutylene‐co‐isoprene) via atom transfer radical polymerization

Wang

Wan

Zhang

et al. 2016

J of Applied Polymer Sci

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Commercial brominated poly(isobutylene-co-isoprene) (BIIR) rubber has been directly used for the initiation of atom transfer radical polymerization (ATRP) by utilizing the allylic bromine atoms on the macromolecular chains of BIIR. The graft copolymerization of methyl methacrylate (MMA) from the backbone of BIIR which was used as a macroinitiator was carried out in xylene at 85 8C with CuBr/N,N,N 0 ,N 00 ,N 00 -pentamethyldiethylenetriamine as a catalytic complex. The polymerization conditions were optimized by adjusting the catalyst and monomer concentration to reach a higher monomer conversion and meanwhile suppress macroscopic gelation during the polymerization process. This copolymerization followed a first-order kinetic behavior with respect to the monomer concentration, and the number-average molecular weight of the grafted poly(methyl methacrylate) (PMMA) increased with reaction time. The resultant BIIR-graft-PMMA copolymers showed phase separation morphology as characterized by atomic force microscopy, and the presence of PMMA phase increased the polarity of the BIIR copolymers. This study demonstrated the feasibility of using commercial BIIR polymer directly as a macromolecular initiator for ATRP reactions, which opens more possibilities for BIIR modifications for wider applications.

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Modification of SEBS rubber via iron-mediated AGET ATRP in the presence of limited amounts of air

Cited by 23 publications

References 48 publications

Iron-mediated reversible deactivation controlled radical polymerization

Iron-mediated reversible deactivation controlled radical polymerization

Thermal behaviors and flame retardancy of novel flame‐retardant, oil‐filled styrene–ethylene–butadiene–styrene block copolymer–polypropylene materials

Graft copolymerization of methyl methacrylate from brominated poly(isobutylene‐co‐isoprene) via atom transfer radical polymerization

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