Synthesis and Metal Ion Adsorption Properties of a Dense Triazole Polymer Carrying Cysteine Residues

Ejima, Ryo; Nakahata, Masaki; Kamon, Yuri et al.

Journal of Polymer Science, 2025

Number of Access:19（2025-04-03 15:15 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100547

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
JPolymSci_pol.20240752 pdf None 1.42 MB 12 2025.03.10  
Creative Commons : Attribution - NonCommercial - NoDerivatives

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Synthesis and Metal Ion Adsorption Properties of a Dense Triazole Polymer Carrying Cysteine Residues
Creator
CreatorName
Ejima, Ryo
NRID
1000040755641 1000040755641
ORCID
0000-0003-0397-5922 0000-0003-0397-5922
researchmap permalink
masakinakahata masakinakahata
Scopus Author ID
54397448600 54397448600
CreatorName
Nakahata, Masaki
NRID
1000090773218 1000090773218
researchmap permalink
7000020772 7000020772
Scopus Author ID
56275658600 56275658600
CreatorName
Kamon, Yuri
NRID
1000070294147 1000070294147
ORCID
0000-0003-0061-3432 0000-0003-0061-3432
researchmap permalink
read0051750 read0051750
Scopus Author ID
7003295779 7003295779
CreatorName
Hashidzume, Akihito
Subject
copper(I)-catalyzed azide–alkyne cycloaddition
cysteine
dense triazole polymers
metal ion adsorption
Description
Ejima R., Nakahata M., Kamon Y., et al. Synthesis and Metal Ion Adsorption Properties of a Dense Triazole Polymer Carrying Cysteine Residues. Journal of Polymer Science, (2025); https://doi.org/10.1002/pol.20240752.
Abstract
Copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) is promising as a reaction to synthesize functional polymers consisting of 1,2,3-triazole units. Recently, we reported a series of dense 1,2,3-triazole polymers of 4-azido-5-hexynoic acid derivatives. Herein, we designed a new water-soluble dense 1,2,3-triazole polymer carrying amino acid residues in the side chains, that is, poly(N-(4-azido-5-hexynoyl)cysteine) (poly(AC)), bearing L-cysteine as a ligand for metal ions. CuAAC polymerization of a protected monomer followed by deprotection and neutralization yielded the sodium salt of poly(AC) (poly(AC)Na). The adsorption capacity of poly(AC)Na with Cd2+ was investigated with a colorimetric assay. Furthermore, the interactions for poly(AC) with group 12 metal ions (Zn2+, Cd2+, and Hg2+) were investigated using isothermal titration calorimetry (ITC) and transmittance measurements. Utilizing the colorimetric assay data, the Cd2+ adsorption capacity per unit weight of poly(AC)Na was evaluated to be 4–5 mmol g−1, comparable to those of Cd2+ adsorbents reported previously. The ITC data demonstrated that the interactions of poly(AC)Na with Zn2+, Cd2+, and Hg2+ were predominantly exothermic. Based on the ITC data, apparent dissociation constants of interactions were roughly estimated to be in the order of 10−5–10−4 M, which are comparable to those for metal-binding biomolecules. The transmittance data indicated that the poly(AC)Na/CdCl2 system underwent phase separation.
Publisher
John Wiley and Sons Inc
Source Title
Journal of Polymer Science
Date of Issued
2025-02-05
Language
English
Handle URL
https://hdl.handle.net/11094/100547
PISSN
26424150
eISSN
26424169
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/pol.20240752
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article