Synthesis and Surface Properties of Amphiphilic Star-Shaped and Dendrimer-like Copolymers Based on Polystyrene Core and Poly(ethylene oxide) Corona

Francis, Raju; Taton, Daniel; Logan, Jeongok G.; Massé, Pascal; Gnanou, Yves; Duran, Randolph S.

doi:10.1021/ma030258k

Cited by 149 publications

(144 citation statements)

References 27 publications

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“…81, 82 The same group subsequently expanded this approach by reversing the order of the blocks. 83 In that work a star polymer of polystyrene was first synthesized by ATRP, followed by transformation of the terminal group to either a mono-or difunctional initiator for anionic polymerization of ethylene oxide. 83 When a difunctional initiator is used, then dendrimer-like polymers are generated with the first generation being a polystyrene and the second generation being a poly(ethylene oxide) block.…”

Section: Long-chain Analogues Of Dendrimers Based On Ring-mentioning

confidence: 99%

Dendritic and Hyperbranched Polymers from Macromolecular Units: Elegant Approaches to the Synthesis of Functional Polymers

2011

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This perspective presents the state-of-the-art techniques to synthesize highly branched polymers such as dendrimers and hyperbranched polymers with well-defined linear chains between branch points. These highly branched polymers are essentially the long-chain analogues of conventional dendrimers and hyperbranched polymers and have been given many names, including dendrimer-like, DendriMac, HyperMac, etc. We cover the various synthetic strategies: the direction of synthesis (i.e., core outward or periphery inward) and the building of hyperbranched polymer either through iterative chain growth/branching reactions or from well-defined and reactive building blocks. The first section of this paper focuses on the iterative chain growth/branching reactions. These reactions have been used to create long-chain analogues of dendrimers. The second section highlights the modular synthesis of long-chain analogues of dendrimers following traditional dendrimer chemistry, based on divergent or convergent synthesis, and using linear polymers, or macromonomers, as building units. The third section outlines the modular synthesis of hyperbranched polymers via single step addition of macromonomers. The final section of this perspective highlights other related syntheses of long-chain hyperbranched polymers that do not fit within the groups described above.

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Section: Long-chain Analogues Of Dendrimers Based On Ring-mentioning

confidence: 99%

Dendritic and Hyperbranched Polymers from Macromolecular Units: Elegant Approaches to the Synthesis of Functional Polymers

2011

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“…All other regents and solvents were purchased from Sinopharm Chemical Reagent Co., Ltd. (SCR) and used as received except for declaration. Diphenylmethylpotassium (DPMK) solution was prepared according to a literature method, [33] and the concentration was 0.75 mol Á L…”

Section: Experimental Section Materialsmentioning

confidence: 99%

Synthesis of Eight‐shaped Poly(ethylene oxide) by the Combination of Glaser Coupling with Ring‐opening Polymerization

Wang

Fan

et al. 2011

Macromol. Rapid Commun.

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The eight-shaped poly(ethylene oxide) (PEO) is synthesized by a combination of Glaser coupling with ring-opening polymerization (ROP). Firstly, the star-shaped (PEO-OH)(4) is synthesized by ROP of ethylene oxide (EO) using pentaerythritol as an initiator and diphenylmethyl potassium (DPMK) as a deprotonated agent, and then the alkyne group is introduced onto the PEO arm-end to give (PEO-Alkyne)(4) in a NaH/tetrahydrofuran (THF) system. The intramolecular cyclization is carried out by a Glaser coupling reaction in a pyridine/CuBr/N,N,N',N",N"-pentamethyldiethylenetriamine (PMDETA) system at room temperature in an air atmosphere, and eight-shaped PEO was formed with high efficiency (almost 100%). The target polymers and intermediates were well characterized by SEC, MALDI-TOF MS, (1)H NMR and FT-IR in detail.

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“…Diphenylmethylpotassium (DPMK) was prepared according to literature. [22] Synthesis of 2-Methylol-3,4-ethylenedioxythiophene (EDOT-CH 2 OH) (see Scheme 1)…”

Section: Experimental Partmentioning

confidence: 99%

Synthesis of PEDOT Nanoparticles and Vesicles by Dispersion Polymerization in Alcoholic Media

Mumtaz

Cuendias

Putaux

et al. 2006

Macromol. Rapid Commun.

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Summary: The synthesis of PEDOT nanoparticles and vesicles by dispersion polymerization in a methanol/water mixture (3/2, v/v) is reported, using either ammonium persulfate or iron(III) p‐toluenesulfonate as oxidants and α‐EDOT‐PEO as a reactive stabilizer. The influence of the oxidant as well as the α‐EDOT‐PEO molar mass and concentration on the core‐shell particle morphology and conductivity properties have been investigated. PEDOT particles with conductivities up to 1.5 × 10−2 S · cm−1 have been obtained in high yield.

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Synthesis and Surface Properties of Amphiphilic Star-Shaped and Dendrimer-like Copolymers Based on Polystyrene Core and Poly(ethylene oxide) Corona

Cited by 149 publications

References 27 publications

Dendritic and Hyperbranched Polymers from Macromolecular Units: Elegant Approaches to the Synthesis of Functional Polymers

Dendritic and Hyperbranched Polymers from Macromolecular Units: Elegant Approaches to the Synthesis of Functional Polymers

Synthesis of Eight‐shaped Poly(ethylene oxide) by the Combination of Glaser Coupling with Ring‐opening Polymerization

Synthesis of PEDOT Nanoparticles and Vesicles by Dispersion Polymerization in Alcoholic Media

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