Super-adsorbent microspheres based on a triallyl isocyanurate–maleic anhydride copolymer for the removal of organic pollutants from water

Xu, Can; Shu, Hongyi; Chen, Chuxuan; Xi, Qi; Zhou, Jin; Ma, Yuhong; Zhao, Changwen; Yang, Wantai

doi:10.1039/d2nr07124j

Cited by 3 publications

(2 citation statements)

References 75 publications

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“…The 2SP process is commonly applied for the alternating copolymerization of electron-rich and electron-deficient monomer pairs. The monomer concentration of the 2SP system can be as high as 40%, and the monomer conversion can reach nearly 100% in 6 h. − Monodisperse microspheres with regular morphology, controlled size, and high density of functional groups are facilely and efficiently obtained by simple centrifugation or filtration. What’s more, the separated solvent containing residual monomers can be directly reused to reduce environmental pollution, which makes the 2SP process suitable for large-scale industrial production.…”

Section: Introductionmentioning

confidence: 99%

Facile and High-Yield Synthesis of Monodisperse and Heat-Resistant Polymaleimide Microspheres by Self-Stabilized Precipitation Polymerization

Yang,

Shu,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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In recent years, monodisperse functional polymer particles have attracted intensive attention due to their promising prospects in numerous application fields. Herein, monodisperse polymaleimide (PMI) microspheres with excellent thermal stability and a high glass transition temperature were facilely prepared by self-stabilized precipitation polymerization (2SP) of maleimide. The effects of the reaction medium, monomer and initiator concentrations, reaction temperature, and cross-linker dosage on the size and morphology of the as-prepared PMI microspheres were systematically investigated. By simply adjusting the monomer and initiator concentration and reaction temperature, monodisperse spherical PMI microspheres were successfully obtained in high yield (close to 100%) in ethyl acetate with tunable diameters of 0.24−1.08 μm. To elucidate the nucleation, stabilization, and growth mechanism, the size, surface morphology, and molecular weight of the as-prepared PMI microspheres were monitored over the polymerization process. As expected, the particle growth was mainly attributed to the continuous deposition of newly formed PMI chains onto the surface of the PMI nuclei, which is in good agreement with the traditional 2SP process. Furthermore, the intermolecular hydrogen-bonding interactions between imide and carbonyl groups might also exert an important influence on the stabilization and growth of the PMI particles, which were verified by the 2SP polymerization of MI in the presence of urea and succinimide.

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Section: Introductionmentioning

confidence: 99%

Facile and High-Yield Synthesis of Monodisperse and Heat-Resistant Polymaleimide Microspheres by Self-Stabilized Precipitation Polymerization

Yang,

Shu,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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“…A much stronger peak at 1679 cm −1 and a new peak at 1463 cm −1 were respectively ascribed to the C�O symmetrical stretching vibration and C−N vibration in the isocyanurate ring of TAIC. 72,73 The broad peak between 3700 and 3200 cm −1 came from the O−H stretching vibration of hydroxyl groups in DTT. 63 The new peak at 2921 cm −1 was attributed to the stretching vibration of CH 2 in the thioether (−CH 2 −S−CH 2 −) bonds.…”

Section: ■ Introductionmentioning

confidence: 99%

“Clickable” Interfacial Polymerization of Polythioether Ultrathin Membranes for Ion Separation

Dong,

Zhu,

Fang

et al. 2023

Macromolecules

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Ultrathin membranes by interfacial polymerization can efficiently purify high-salinity water, but the variety beyond classic polyamide is limited yet. Based on the modular and rapid feature of click chemistry, this work for the first time reports a "clickable" IP strategy to prepare polythioether ultrathin membranes for ion separation. Multiple sets of multifunctional thiol and alkene/alkyne monomers are proven to react at the water−oil interface via thiol−ene/yne addition polymerization. In particular, triallyl cyanurate-DL-dithiothreitol and triallyl isocyanurate-DL-dithiothreitol ultrathin membranes prepared on polyether sulfone substrates reach the separation accuracy of nanofiltration with rejections to Na 2 SO 4 of over 95%. Their surfaces remain negatively charged in both acidic and alkaline environments, and thioether linkages even stand the challenge of long-term acid treatment with high concentration. This strategy would thus motivate growing attempts at developing new-type ultrathin membranes for ion removal or desalination.

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Uniformly sized and self‐assembled maleic anhydride/vinyl acetate/acrylamide terpolymer core–shell nanoparticles fabricated by self‐stabilized precipitation polymerization

Li,

Zhao,

Yang

2024

Journal of Polymer Science

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Copolymer particles containing anhydride and amide groups are widely utilized in oilfields and medication releases because of their high specific surface area, excellent biocompatibility, and water solubility. Here, the self‐stabilized precipitation (2SP) method was used to create maleic anhydride (MAH)/vinyl acetate (VAc)/acrylamide (AM) terpolymer (PMVA) microspheres. Terpolymer composition was highly dependent on monomer feed ratio and microspheres with diameters in the range of about 228–1048 nm could be prepared by altering reaction parameters. Notably, AM was consumed completely within a short period of time owing to high monomer reactivity, MAH and VAc continuing to copolymerize in an alternating manner. Thus self‐assembled core–shell particle with poly(MAH‐co‐VAc‐co‐AM) as core and poly(MAH‐alt‐VAc) as shell (PMVA@PMV) was readily achieved. PMVA particles can be scaled up to application platforms of hydrogel, oil recovery, and scale inhibition. Meanwhile, this contribution broadened the preparation process of core–shell material and can be applied to interface materials by simple modification.

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Super-adsorbent microspheres based on a triallyl isocyanurate–maleic anhydride copolymer for the removal of organic pollutants from water

Abstract: Owing to the frequent occurrence of diclofenac sodium (DS) in fresh aquatic environments and its potential toxicity towards living organisms, the effective removal of DS has attracted worldwide concern. Herein,...

Cited by 3 publications

References 75 publications

Facile and High-Yield Synthesis of Monodisperse and Heat-Resistant Polymaleimide Microspheres by Self-Stabilized Precipitation Polymerization

Facile and High-Yield Synthesis of Monodisperse and Heat-Resistant Polymaleimide Microspheres by Self-Stabilized Precipitation Polymerization

“Clickable” Interfacial Polymerization of Polythioether Ultrathin Membranes for Ion Separation

Uniformly sized and self‐assembled maleic anhydride/vinyl acetate/acrylamide terpolymer core–shell nanoparticles fabricated by self‐stabilized precipitation polymerization

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