scholarly journals Metallo-Supramolecular Hydrogels from the Copolymers of Acrylic Acid and 4-(2,2′:6′,2″-terpyridin-4′-yl)styrene

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1152 ◽  
Author(s):  
Huiqin Zhang ◽  
Pan Liu ◽  
Zheng Chi ◽  
Xuegang Chen
Keyword(s):  
Transition Metal ◽  
Acrylic Acid ◽  
Metal Ions ◽  
Self Assembly ◽  
Wavelength Region ◽  
Transition Metal Ions ◽  
Ion Concentration ◽  
Iron Ions ◽  
Absorption Intensity ◽  
Dilute Aqueous Solution

Hydrophilic copolymers containing 2,2′:6′,2″-terpyridine moieties and acrylic acid (AA) units poly (acrylic acid-co-4-(2,2′:6′,2″-terpyridin-4′-yl)styrene) (P(AA-co-TPY)) were synthesized and characterized. Coordinated with different transition metal ions, the dilute aqueous solution of the copolymers exhibited red-shifted UV-vis absorption peaks of π-π* transition from 317 to 340 nm. Further, interacting with iron ions, the copolymer showed new absorption peaks at a longer wavelength region (570 nm) and the absorption intensity enhanced with increase of the ion concentration. When enough ions were added to coordinate with the 2,2′:6′,2″-terpyridine moieties, novel metallo-supramolecular hydrogels were obtained due to the formation of metal coordination bonds between polymer back bones and transition metal ions (Ni2+, Zn2+, Cd2+, Fe2+ and Cu2+), which acted as self-assembly crosslinking structures. The mechanical strength and morphology of the resulting metallo-supramolecular hydrogels have been investigated.

Self assembly of a tren-derivative hydrogenated Schiff base with transition metal ions: syntheses, crystal structures and photoluminescent properties

CrystEngComm ◽  
2012 ◽  
Vol 14 (8) ◽  
pp. 2879 ◽  
Author(s):  
Yuehong Wen ◽  
Tianlu Sheng ◽  
Qilong Zhu ◽  
Shengmin Hu ◽  
Chunhong Tan ◽  
...  
Keyword(s):  
Schiff Base ◽  
Transition Metal ◽  
Metal Ions ◽  
Crystal Structures ◽  
Self Assembly ◽  
Transition Metal Ions

Behavior of Polyelectrolyte Gels in Concentrated Solutions of Highly Soluble Salts

MRS Advances ◽  
2020 ◽  
Vol 5 (17) ◽  
pp. 907-915 ◽  
Author(s):  
Jessica L. Sargent ◽  
Xunkai Chen ◽  
Mitchell C. Brezina ◽  
Sebastian Aldwin ◽  
John A. Howarter ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
High Performance Concrete ◽  
Group Versus ◽  
Transition Metal Ions ◽  
Main Group ◽  
Ion Concentration ◽  
Polyelectrolyte Gels ◽  
Counter Ion ◽  
Versus Transition

ABSTRACTIonic hydrogels are an abundant class of materials with applications ranging from drug delivery devices to high performance concrete to baby diapers. A more thorough understanding of interactions between polyelectrolyte networks and ionic solutes is critical as these materials are further tailored for performance applications in highly targeted ionic environments. In this work, we seek to develop structure-property relationships between polyelectrolyte gels and environments containing high concentrations of multivalent ions. Specifically, this work seeks to elucidate the causes behind differences in hydrogel response to divalent ions of main group metals versus transition metals. PANa-co-PAM hydrogels containing low and high fractions of ionic groups are investigated in solutions of DI water, NaCl, CaCl2, and CuSO4 at concentrations ranging from 5 to 100 mM in order to understand 1) the transient or permanent nature of crosslinks produced in these networks by divalent counter-ions, 2) the role of polymer ionic content in these interactions, and 3) how these interactions scale with salt concentration. Gravimetric swelling and mechanical compression testing are employed to characterize water and salt-swollen hydrogels in order to develop guiding principles to control and manipulate material properties through polymer-counter-ion interactions. The work presented here confirms the formation of permanent crosslinks by transition metal ions, offers explanation for the behavioral discrepancy observed between ionic hydrogels and main group versus transition metal ions, and illustrates how such hydrogel properties scale with counter-ion concentration.

scholarly journals Supramolecular complexes of cobalt(II), manganese(II) and cadmium(II) with bis(terpyridine) ligand as novel luminescent materials

2013 ◽  
Vol 15 (3) ◽  
pp. 91-95 ◽  
Author(s):  
Monika Wałęsa-Chorab ◽  
Adam Gorczyński ◽  
Damian Marcinkowski ◽  
Zbigniew Hnatejko ◽  
Violetta Patroniak
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Electronic Absorption ◽  
Self Assembly ◽  
Emission Spectra ◽  
Transition Metal Ions ◽  
Supramolecular Complexes ◽  
Luminescent Materials ◽  
Absorption And Emission ◽  
Counter Ions

Abstract Self-assembly of N6-donor bis(terpyridine) ligand L with transition metal ions: Co(II), Mn(II) and Cd(II) leads to a formation of three kinds of supramolecular complexes. In the electronic absorption and emission spectra of supramolecular complexes additional bands were observed what was ascribed to the coordination of ligand molecules to metal ions. Luminescence properties of these complexes strongly depend on the kind of metal ions and counter ions. The effective blue luminescence was observed in the case of Mn(II) and Cd(II) complexes in which all N-donor atoms of ligand molecules coordinate with the metal center

Supramolecular arrays by the self-assembly of terpyridine-based monomers with transition metal ions

2018 ◽  
Vol 47 (22) ◽  
pp. 7528-7533 ◽  
Author(s):  
Ting-Zheng Xie ◽  
Yuchen Yao ◽  
Xinyu Sun ◽  
Kevin J. Endres ◽  
Shiying Zhu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Self Assembly ◽  
Weak Interactions ◽  
Building Blocks ◽  
Transition Metal Ions ◽  
The Self

Hierarchical construction of a highly ordered supramolecular array has been, in general, a challenge due to the complexation of building blocks and the hard-to-control weak interactions.

Entangled 3D metal-organic architectures from the self-assembly of mixed ligands and transition-metal ions

2008 ◽  
Vol 877 (1-3) ◽  
pp. 56-63 ◽  
Author(s):  
Yong-Hui Wang ◽  
Yun-Wu Li ◽  
Wei-Lin Chen ◽  
Yang-Guang Li ◽  
En-Bo Wang
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Self Assembly ◽  
Transition Metal Ions ◽  
The Self ◽  
Mixed Ligands ◽  
Metal Organic

Subcomponent self-assembly of polymer chains based on dynamic and geometrical coordination diversity of the first row transition metal ions

2014 ◽  
Vol 5 (4) ◽  
pp. 1202-1209 ◽  
Author(s):  
Xuewen Wu ◽  
Na Xu ◽  
Zhengguang Zhu ◽  
Yuanli Cai ◽  
Ying Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Self Assembly ◽  
Transition Metal Ions ◽  
Polymer Chains

scholarly journals Introducing Seven Transition Metal Ions into Terpyridine-Based Supramolecules: Self-Assembly and Dynamic Ligand Exchange Study

2020 ◽  
Vol 142 (4) ◽  
pp. 1811-1821 ◽  
Author(s):  
Lei Wang ◽  
Bo Song ◽  
Sandra Khalife ◽  
Yiming Li ◽  
Li-June Ming ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Self Assembly ◽  
Ligand Exchange ◽  
Transition Metal Ions ◽  
Exchange Study
Sign in / Sign up

Export Citation Format

Share Document