Fluorescent Polyamides with Piperazine and Valerolactam Structures Prepared by the Modified Ugi Reaction and Its Specific Detection to NO2– Ions DOI
Yunfei Liu,

Yayu Feng,

Yue Sun

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

In this investigation, a nonconjugated fluorescent polyamide with piperazine and valerolactam moieties (PAM–PV) has been synthesized by the modified Ugi polymerization using 1,4-bis(3-aminopropyl)piperazine, levulinic acid, 1,4-bis(3-isocyanopropyl)piperazine as monomers. polymerization, special construction of acid leads to formation on PAM–PV chains via Mumm rearrangement. shows strong fluorescence emission at 428 nm due intramolecular aggregation along backbone. Impressively, can specifically detect NO2– ions static quenching linear range 10–6–10–5 M detection limit 0.6 μM (0.0276 mg/L), which was far less than minimum allowable concentration 3 mg/L for in drinking water specified WHO. Furthermore, several common anions cations have no interference effects specific ions. The mechanism FTIR, UV, 1H NMR measurements indicates that electrostatic interaction between makes macromolecular more relaxed outstretched, leading nonfluorescent complex. Moreover, practical three bodies, sauerkraut, ham sausage fabrication portable detecting paper were conducted experiment.

Language: Английский

Clickable Polymerization‐Induced Emission Luminogens Toward Color‐Tunable Modification of Non‐Traditional Intrinsic Luminescent Polymers DOI
Xiaoli Sun, Xue Hong,

Xi‐Yao Gu

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: 45(11)

Published: Feb. 17, 2024

Non-traditional intrinsic luminescent (NTIL) polymer is an emerging field, and its color-tunable modification highly desirable but still rarely investigated. Here, a click chemistry approach for the modifications of NTIL polymers by introducing clickable polymerization-induced emission luminogen (PIEgen), demonstrated. Through Cu-catalyzed azide-alkyne cycloaddition chemistry, series PIEgens successful prepared, which further polymerized via reversible addition-fragmentation chain transfer (RAFT) polymerization. Interestingly, after modification, these monomers are nonemissive in both solution aggregation states; while, corresponding exhibit intriguing aggregation-induced (AIE) characteristics, confirming their PIEgen characteristics. By varying alkynyl substitutions, achieved with wavelength from 448 to 498 nm, revealing verifying importance polymers. Further luminescence energy application carried out as well. This work therefore designs opens new avenue may cause inspirations research fields including polymer, NTIL, AIE modification.

Language: Английский

Citations

3
Metal-free click polymerization of thiols and chalcone-derived internal olefins in air to prepare functional clusteroluminescent polythioethers for dual-response fluorescent probe DOI
Chunxia Li, Guang Yang, Tiantian Xiong

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111374 - 111374

Published: May 1, 2025

Language: Английский

Citations

0
Fluorescent Polyamides with Piperazine and Valerolactam Structures Prepared by the Modified Ugi Reaction and Its Specific Detection to NO2– Ions DOI
Yunfei Liu,

Yayu Feng,

Yue Sun

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

In this investigation, a nonconjugated fluorescent polyamide with piperazine and valerolactam moieties (PAM–PV) has been synthesized by the modified Ugi polymerization using 1,4-bis(3-aminopropyl)piperazine, levulinic acid, 1,4-bis(3-isocyanopropyl)piperazine as monomers. polymerization, special construction of acid leads to formation on PAM–PV chains via Mumm rearrangement. shows strong fluorescence emission at 428 nm due intramolecular aggregation along backbone. Impressively, can specifically detect NO2– ions static quenching linear range 10–6–10–5 M detection limit 0.6 μM (0.0276 mg/L), which was far less than minimum allowable concentration 3 mg/L for in drinking water specified WHO. Furthermore, several common anions cations have no interference effects specific ions. The mechanism FTIR, UV, 1H NMR measurements indicates that electrostatic interaction between makes macromolecular more relaxed outstretched, leading nonfluorescent complex. Moreover, practical three bodies, sauerkraut, ham sausage fabrication portable detecting paper were conducted experiment.

Language: Английский

Citations

0