Self-assembly of physically crosslinked micelles of poly(2-acrylamido-2-methyl-1-propane sulphonic acid-co-isodecyl methacrylate)-copper(II) complexes

Miguel, Verónica San; Catalina, F.; Peinado, C.

doi:10.1016/j.eurpolymj.2008.02.006

Cited by 9 publications

(7 citation statements)

References 20 publications

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“…As shown in Figure 8, for the conjugate II assemblies, the broad peak at 3453 cm −1 due to the free carboxylate groups as well as the hydroxyl group, is completely quenched in the case of CdS nanoparticle bound assemblies indicating their role in binding. 33 Shifts were also seen when comparing conjugate assemblies to those bound to CdS nanoparticles. The C-H stretching peaks also are shifted to 2695 cm −1 and 2740 cm −1 thus indicating a change in assembly formation.…”

Section: Ftir Spectroscopymentioning

confidence: 78%

Fabrication of CdS bound pyrazole carboxamide conjugated nanoassemblies and their applications

Hartnett¹,

J²,

Romanelli³

et al. 2014

Mat Express

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In this work, a new family of nanoassemblies were developed by conjugating the pyrazole-based moiety 4-Amino-1-methyl-3-n-propyl-5-pyrazolecarboxamide (AMP) with the chelating agent 1,3-diamino-2-hydroxypropane-N,N,N,N-tetraacetic acid (TTA). By altering the ratio of AMP added, three conjugates were synthesized. Each of those conjugates were self-assembled at varying pH values to promote the growth of higher order supramolecular structures. The results showed that growth was pH dependent as well as dependent on the ratio of AMP to TTA utilized to form the conjugates. While under acidic conditions, primarily nanofibers were observed, under basic conditions, nanovesicles were formed. Due to the chelating ability of the conjugates, CdS nanoparticles were then grown on the assemblies. The hybrid CdS nanoparticle-bound assemblies showed distinct anti-fungal activity as well as cytotoxicty toward HeLa cells. Thus we have developed a new family of supramolecular assemblies with potential applications in biosensors or in environmental monitoring.

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Section: Ftir Spectroscopymentioning

confidence: 78%

Fabrication of CdS bound pyrazole carboxamide conjugated nanoassemblies and their applications

Hartnett¹,

J²,

Romanelli³

et al. 2014

Mat Express

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“…Nevertheless, the lower thermal stability of the Cu II –terpolymers over the terpolymers is indicative of the reversible binding of Cu II to the terpolymers through ionic or coordinative bonding. Notably, the inferior thermostability of Cu II –terpolymers compared with the terpolymers can be ascribed to the thermolabile nature of the Cu II –sulfonate complex releasing coordinated and hydrogen‐bonded water . Indeed, complexation‐driven weakening of the intramolecular hydrogen bonding and easier heat flow in adsorbed terpolymers contribute significantly to the poorer thermal stability of the Cu II –terpolymers.…”

Section: Resultsmentioning

confidence: 99%

“…Indeed, complexation‐driven weakening of the intramolecular hydrogen bonding and easier heat flow in adsorbed terpolymers contribute significantly to the poorer thermal stability of the Cu II –terpolymers. In this regard, the possible displacement of the coordinated water of Cu(NO 3 ) 2 by sulfonate ligands could accelerate the decomposition of Cu II –terpolymers, leading to the sharp loss of mass at around 250 °C, as water‐ and sulfonate‐coordinated Cu II complexes have been reported to show similar thermostability . Notably, the complexation of Cu II with the terpolymers and related alteration of the amides results in the appreciable deterioration in the n–π interactions and aggregates, evidenced by fluorescence quenching in the Cu II –terpolymers.…”

Section: Resultsmentioning

confidence: 99%

“…UV/Vis spectra of a) 1/Cu II -1,b )2/Cu II -2,a nd c) 5/Cu II -5.d )EPR spectraofC u II -1,Cu II -2,a nd Cu II -5.e)FTIR spectra of Cu II -1,Cu II -2,a nd Cu II -5. f) TGAofC u II -1,Cu II -2,a nd Cu cribed to the thermolabile nature of the Cu II -sulfonate complex releasing coordinated and hydrogen-bonded water. [28] Indeed, complexation-driven weakening of the intramolecular hydrogen bonding and easier heat flow in adsorbed terpolymers contribute significantly to the poorer thermal stabilityo f the Cu II -terpolymers. In this regard, the possible displacement of the coordinated water of Cu(NO 3 ) 2 by sulfonate ligands could accelerate the decomposition of Cu II -terpolymers, leading to the sharp loss of mass at around2 50 8C, as water-a nd sulfonate-coordinated Cu II complexes have been reported to show similar thermostability.…”

Section: Te Rpolymersmentioning

confidence: 99%

See 1 more Smart Citation

Multi‐C−C/C−N‐Coupled Light‐Emitting Aliphatic Terpolymers: N−H‐Functionalized Fluorophore Monomers and High‐Performance Applications

Mahapatra

Dutta

Roy

et al. 2019

Chemistry A European J

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To circumvent costly fluorescent labeling, five nonconventional, multifunctional, intrinsically fluorescent aliphatic terpolymers (1–5) have been synthesized by C−C/C−N‐coupled, solution polymerization of two non‐emissive monomers with protrusions of fluorophore monomers generated in situ. These scalable terpolymers were suitable for sensing and high‐performance exclusion of CuII, logic function, and bioimaging. The structures of the terpolymers, in situ attachment of fluorescent monomers, aggregation‐induced enhanced emission, bioimaging ability, and super adsorption were investigated by 1H and 13C NMR, EPR, FTIR, X‐ray photoelectron, UV/Vis, and atomic absorption spectroscopy, thermogravimetric analysis, high‐resolution transmission electron microscopy, dynamic light scattering, solid‐state fluorescence, fluorescence imaging, and fluorescence lifetime measurements, as well as by isotherm, kinetics, and thermodynamic studies. The geometries and electronic structures of the fluorophores and the absorption and emission properties of the terpolymers were examined by DFT, time‐dependent DFT, and natural transition orbital analyses. For 1, 2, and 5, the limits of detection were determined to be 1.03×10−7, 1.65×10−7, and 1.77×10−7 m, respectively, and the maximum adsorption capacities are 1575.21, 1433.70, and 1472.21 mg g−1, respectively.

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“…6,7 When metal ions form complexes with functional polymers, the activity of the metal polychelates changes due to the polymeric effect. [8][9][10][11][12] Jiang and Zhu reported that poly(ester-anhydrides) exhibit better degradation ability as anti-infective polymeric prodrugs or matrices for drug delivery. 13 Copolymers have available carboxylic acid functional groups, which can be used in further incorporation of drugs or other bioactive agents.…”

Section: Introductionmentioning

confidence: 99%

Cu(II), Zn(II) and Mn(II) complexes of poly(methyl vinyl ether-alt-maleic anhydride). Synthesis, characterization and thermodynamic parameters

Mazi

Gulpinar

2014

J Chem Sci

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The complexes of poly(methyl vinyl ether-alt-maleic anhydride) (poly(MVE-alt-MA)) with Zn(II), Mn(II) and Cu(II) ions were synthesized from the reaction of the aqueous solution of copolymer and metal(II) chlorides at different temperatures ranging from 25 • to 40 • C. Elemental analysis of the metal-polymer complexes suggests that the metal to ligand ratio is 1:1. The formation constants of each complex were determined by the mol-ratio method. UV-Vis studies showed that the complex formation tendency increased in the following order: Zn(II) > Cu(II) > Mn(II). This order was confirmed by the Irving-William series and Pearson's classification. The IR spectral data indicated the metal ions to be coordinated through the hydroxyl groups of the hydrolysed maleic anhydride. The intrinsic viscosity and thermal properties of the copolymer and metal-polymer complexes and their thermal stability are discussed.

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Self-assembly of physically crosslinked micelles of poly(2-acrylamido-2-methyl-1-propane sulphonic acid-co-isodecyl methacrylate)-copper(II) complexes

Cited by 9 publications

References 20 publications

Fabrication of CdS bound pyrazole carboxamide conjugated nanoassemblies and their applications

Fabrication of CdS bound pyrazole carboxamide conjugated nanoassemblies and their applications

Multi‐C−C/C−N‐Coupled Light‐Emitting Aliphatic Terpolymers: N−H‐Functionalized Fluorophore Monomers and High‐Performance Applications

Cu(II), Zn(II) and Mn(II) complexes of poly(methyl vinyl ether-alt-maleic anhydride). Synthesis, characterization and thermodynamic parameters

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