One-pot synthesis of TBTA-functionalized coordinating polymers

Movahedi, Alireza; Moth‐Poulsen, Kasper; Eklöf, Johnas; Nydén, Magnus; Kann, Nina

doi:10.1016/j.reactfunctpolym.2014.05.008

Cited by 12 publications

(8 citation statements)

References 51 publications

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“…The calculated optimized structures of TBTA and its complexes with Cu(I) and Cu(II) are shown in Fig. 19 We demonstrated that a thin poly(TBTA) film can absorb up to 76 mg g À1 (7.1 wt%) of Cu(II) from an aqueous solution of copper. The calculated structures are also in line with the reported crystal structures for these complexes.…”

Section: Introductionmentioning

confidence: 86%

Cu(i) stabilizing crosslinked polyethyleneimine

Movahedi

Lundin

Kann

et al. 2015

Phys. Chem. Chem. Phys.

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Polyethyleneimine (PEI) is known for its metal-coordinating properties and in its crosslinked form has applications in different areas ranging from drug delivery to waste water treatment and recovery of trace metals. With the aim to regulate the coordination environment of Cu(I) and Cu(II) ions in marine coatings, we have prepared a triazole cross-linking agent with 'soft' coordination that can crosslink PEI via indirect reductive amination. We have shown that this triazole crosslinker not only increases the Cu(II) absorption capacity of the crosslinked PEI in comparison to the traditionally used glutaraldehyde-crosslinked PEI (PEI-GA), but also allows the crosslinked polymer network to stabilize the Cu(I) oxidation state more effectively. The Cu(II) uptake and Cu(I) stabilization of the polymer have been determined by elemental analysis and UV-vis spectroscopy. It was found that the triazole-crosslinked polymer (PEI-TA) could coordinate up to 12 wt% of Cu(II) before and 6 wt% Cu(II) after imine reduction.

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Section: Introductionmentioning

confidence: 86%

Cu(i) stabilizing crosslinked polyethyleneimine

Movahedi

Lundin

Kann

et al. 2015

Phys. Chem. Chem. Phys.

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“…The major weight loss took place in between 300 and 400 °C, may be due to the degradation of the 1,2,3‐triazole moiety and polymer backbone. [ 42 ] However, in case of P4 and P8 polymers, we observed a degradation peak at 252 °C (Figure 7b) maybe due to the presence of small residues of unreacted excess of BA‐diazide.…”

Section: Resultsmentioning

confidence: 92%

Thermoresponsive Shape‐Memory Hydrogel Actuators Made by Phototriggered Click Chemistry

Maiti

Abramov

Franco

et al. 2020

Adv Funct Materials

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In article number 2001683, David Díaz Díaz and co‐workers present a series of strong hydrogel membranes prepared via Cu(I)‐catalyzed photo‐click polymerization using a glycerol ethoxylate core. These materials display thermoresponsive and shape‐memory actuation based on a judicious hydrophilic‐hydrophobic molecular balance, and present a high potential for biomedical applications including drug delivery and artificial muscles.

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“…The synthesis of 1,4‐ or 1,5‐substituted triazoles could be accomplished using either CuAAC or RuAAC protocols, respectively; in the former case good yields could be achieved. We envision that this could be a viable strategy for incorporation of these photochromes into polymers bearing the azide moiety . Upon analysis of the photochromic properties of the NBD triazoles, although having very long‐lived QC states, the optical properties in terms of absorption onset and quantum yields were somewhat less attractive meaning that further efforts are necessary to develop more redshifted acetylene precursors.…”

Section: Discussionmentioning

confidence: 99%

Triazole‐Functionalized Norbornadiene‐Quadricyclane Photoswitches for Solar Energy Storage

2018

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Herein work on 2,3‐substituted norbornadiene‐quadricyclane molecular photoswitches designed for solar energy storage purposes is presented. A series of six new systems bearing 1,4‐ or 1,5‐alkyl triazoles as the acceptor unit combined with various aryl donor groups, as well as four functional intermediates, were synthesized and fully characterized. The new photoswitches were evaluated by measuring optical absorption profiles, activation energies for the thermal conversion of quadricyclanes to norbornadienes, as well as the storage energy densities. These triazoles featured a molar energy storage of 81.2–101 kJ mol–1corresponding to energy densities of 215–267 kJ kg–1. The optical absorption profiles exhibited absorption onsets up to 382 nm and a study of the thermally activated conversion from high‐energy quadricyclanes to norbornadienes revealed energy storage half lives of up to 402 days at 25 °C. The modular nature of the “click chemistry” synthesis concept used herein enables access to a large range of compounds with tailored properties such as solubility, thermal half‐life, and solar spectrum match.

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One-pot synthesis of TBTA-functionalized coordinating polymers

Cited by 12 publications

References 51 publications

Cu(i) stabilizing crosslinked polyethyleneimine

Cu(i) stabilizing crosslinked polyethyleneimine

Thermoresponsive Shape‐Memory Hydrogel Actuators Made by Phototriggered Click Chemistry

Triazole‐Functionalized Norbornadiene‐Quadricyclane Photoswitches for Solar Energy Storage

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