Metallo-Supramolecular Graft Copolymers: A Novel Approach Toward Polymer-Analogous Reactions

Schubert, US Ulrich; Hofmeier, H Harald

doi:10.1002/1521-3927(20020601)23:9<561::aid-marc561>3.0.co;2-w

Cited by 103 publications

(89 citation statements)

References 14 publications

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“…The compound 2-methyl-acrylic acid 3-(2,2 0 :6 0 ,2 00 -terpyridin-4 0 -yloxy)-propyl ester (1) was synthesized in a two-step reaction from 4 0 -chloro-2,2 0 :6 0 ,2 00 -terpyridine [23] as described elsewhere. [11] NMR spectra were measured on a Varian Mercury 400 spectrometer. The chemical shifts were calibrated to the residual solvent peaks or TMS.…”

Section: Materials and Characterizationmentioning

confidence: 99%

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Supramolecular Branching and Crosslinking of Terpyridine‐Modified Copolymers: Complexation and Decomplexation Studies in Diluted Solution

Hofmeier

Schubert

2003

Macro Chemistry & Physics

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A series of poly(methyl methacrylate) copolymers with terpyridine units in the side chains was obtained by free radical polymerization. The free terpyridine units were complexed by iron(II) and zinc(II) ions, and the complexation behavior was studied in detail, utilizing UV‐vis and viscosity titration experiments. Complexation of the polymer chains could be observed, which resulted in characteristic UV‐vis absorption bands and an increase in the solution viscosity. Addition of a strong competitive ligand (hydroxyethyl ethylenediaminetriacetic acid, HEEDTA) resulted in an efficient decomplexation.

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Section: Materials and Characterizationmentioning

confidence: 99%

“…[2,3] In addition to hydrogen bonding units, [4] metal-ligand interactions have mainly been utilized. [5] As a result, linear high molar mass polymers, [6][7][8] defined block copolymers, [9] star-like systems, [10] graft copolymers [11] and micelles [12] as well as networks [13] have been reported.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Branching and Crosslinking of Terpyridine‐Modified Copolymers: Complexation and Decomplexation Studies in Diluted Solution

Hofmeier

Schubert

2003

Macro Chemistry & Physics

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“…[14] by reacting methoxypoly(ethylene glycol) terpyridine ruthenium(III) trichloride [4] (PEG, M n ¼ 3000) chains with poly(methyl methacrylate)s containing terpyridine groups as side chains. The coupling was performed by reduction of the metal center to ruthenium(II).…”

Section: Methodsmentioning

confidence: 99%

“…[12] In the present contribution, the synthesis and investigation of metallo-supramolecular aqueous micelles are reported, based on the recently described metallo-supramolecular PMMA-g-PEG graft copolymers. [14] Experimental Part…”

Section: Introductionmentioning

confidence: 99%

Aqueous Micelles from Supramolecular Graft Copolymers

Gohy

Hofmeier

Alexeev

et al. 2003

Macro Chemistry & Physics

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Aqueous micelles have been prepared from amphiphilic supramolecular graft copolymers, in which poly(ethylene glycol) (PEG) side chains were linked to a poly(methyl methacrylate) (PMMA) backbone via ruthenium(II)‐terpyridine complexes. Three different graft copolymers were investigated, in which the average number of PEG branches (constant length) and the length of the PMMA backbone were varied. The successful formation of micelles was proven by dynamic light scattering (DLS), atomic force microscopy (AFM), and transmission electron microscopy (TEM). A good agreement was found between TEM and AFM observations, which show polydisperse spherical micelles. The hydrodynamic diameter measured by DLS was much larger, suggesting the formation of aggregates. No substantial difference in the micellar characteristic features was found between the three investigated samples.Schematic representation of the graft copolymer synthesis.magnified imageSchematic representation of the graft copolymer synthesis.

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“…In addition to hydrogen bonding units, [4] metal-ligand interactions have mainly been utilized [5,6]. As a result, linear high-molar-mass polymers [7][8][9][10][11], defined block co-polymers [12,13], star-like systems [14][15][16][17], graft co-polymers [18] and micelles [19], as well as networks [20] have been reported.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Coordination Behavior of Zinc Supramolecular Polyurethane End-Capped with Terpyridine

Koohmareh

Sharifi

2010

Designed Monomers and Polymers

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A new supramolecular polymer with isocyanate end-groups was synthesized by polymerization of coordination-type monomer (1), with excess bis(4-isocyanatophenyl)methane (MDI). This polymer was then end capped with terpyridine which can be more polymerized in treating with metal ions. The synthesized monomer and polymer were characterized with FT-IR, 1 H-NMR and CHNS analysis. The physical properties of the polymer, including viscosity and solubility, were also examined. The coordination behavior of polymer was investigated by using Fe(II) and monitored by UV-Vis spectroscopy and viscometery to show the increasing in the length of the polymer backbone by addition of metal ions.

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Metallo-Supramolecular Graft Copolymers: A Novel Approach Toward Polymer-Analogous Reactions

Cited by 103 publications

References 14 publications

Supramolecular Branching and Crosslinking of Terpyridine‐Modified Copolymers: Complexation and Decomplexation Studies in Diluted Solution

Supramolecular Branching and Crosslinking of Terpyridine‐Modified Copolymers: Complexation and Decomplexation Studies in Diluted Solution

Aqueous Micelles from Supramolecular Graft Copolymers

Synthesis, Characterization and Coordination Behavior of Zinc Supramolecular Polyurethane End-Capped with Terpyridine

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