One-pot synthesis of block copolymer dispersant by ICAR ATRP with ppm copper catalyst and the dispersibility on pigment

Li, Meng; Shen, Ding; Zhou, Peng; Li, Di; Li, Penghan; Shi, Boyang; Wang, Guowei

doi:10.1016/j.porgcoat.2022.106914

Cited by 9 publications

(8 citation statements)

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“…Low catalyst loading methods offer more environmentally benign and industrially scalable reaction conditions compared to "classical" ATRP but also provide an option to prepare polymers with designed dispersity, defined by the catalyst content (Discekici et al 2018(Discekici et al , 2016(Discekici et al , 2017Lu et al 2019;Matyjaszewski 2012a;Parkatzidis et al 2020;Treat et al 2014). The new low ppm ATRP methods regenerate the activator by the use of a chemical reducing agent as a radical initiator in initiators for continuous activator regeneration (ICAR) ATRP (Konkolewicz et al 2012;Luan et al 2022), chemical compounds (Luo et al 2022;Matyjaszewski et al 2007;Min et al 2007) and silver (Williams et al 2015) in activators regenerated by electron transfer (ARGET) ATRP-used a few times for membrane modification (Bhut et al 2012;Worthley et al 2011), zerovalent metals in supplemental activator and reducing agent (SARA) ATRP (Chmielarz et al 2015a;Konkolewicz et al 2014Konkolewicz et al , 2013, external stimuli as an electrical current in electrochemically mediated ATRP (eATRP) (Chmielarz 2017;Chmielarz et al 2015b;De Bon et al 2022;Han et al 2022;Park et al 2015;Zhao et al 2022), light in metal-free (Soly et al 2022;Su et al 2022;Treat et al 2014) or photochemically mediated ATRP (photo-ATRP) (Fu et al 2021;Huang et al 2017;Tasdelen et al 2011), mechanical forces in mechanically induced ATRP (mechano-ATRP) (Liu et al 2022a;Mohapatra et al 2018;Wang et al 2019), ultrasound in ultrasonication-induced atom tran...…”

Section: Fundamentals Of Flat Surfaces Modification: Atom Transfer Ra...mentioning

confidence: 99%

Polymer-modified regenerated cellulose membranes: following the atom transfer radical polymerization concepts consistent with the principles of green chemistry

Zaborniak

Chmielarz

2022

Cellulose

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Synthetic routes for functionalization of cellulose membranes by polymer chains characterized by controlled structures are constantly developed to precisely adjust the properties of the prepared material while minimizing the impact on the membrane performance. The review presents a critical and integrative evaluation of prior research on atom transfer radical polymerization (ATRP) techniques, emphasizing methods carried out with diminished catalyst concentration that were used for grafting polymers from cellulose membranes. The paper introduces cellulose as a naturally-derived and efficient material for filtration membrane production focusing on the fundamentals of the cellulose structure, and the reasons, and advantages of using cellulose as a membrane-built substrate. It also covers fundamental mechanistic aspects of ATRP and introduces the basic principles of low ppm ATRP methods focusing on the latest reports. The works up to date concerning the functionalization of cellulose membranes by the “classic” ATRP concept, paying attention to the concentration of the complex used and synthetic methodology, as well as the final properties of the obtained materials are shown. Subsequent, low ppm ATRP techniques are discussed against the background of the “classic” approach in synthesizing bioactive surfaces and functional biomaterials based on the structure of cellulose membranes, with emphasis on the advantages of methods with diminished catalyst level as a more cost-effective and thus more compatible to use in a commercial application. The present work is a concise and perspective review, which shows both the achievements to date and broad prospects for the development of this issue in the coming years. Graphical Abstract

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Section: Fundamentals Of Flat Surfaces Modification: Atom Transfer Ra...mentioning

confidence: 99%

Polymer-modified regenerated cellulose membranes: following the atom transfer radical polymerization concepts consistent with the principles of green chemistry

Zaborniak

Chmielarz

2022

Cellulose

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“…Poly(glycidyl methacrylate) (PGMA) is a highly versatile polymer that can be easily modified with different functional groups such as amines, alcohols, and anhydrides through ring-opening reactions or postpolymerization reactions . PGMA microspheres have been investigated for several uses, such as catalyst supports, , drugs, gene and cell vectors, , adsorbents, , and frameworks for constructing more complex architectures. , Dispersion polymerization is a frequently employed technique for fabricating PGMA microspheres; it permits control over particle size, polydispersity, and epoxide group content . The advantages of PGMA are its uniform microscale size, rapid adsorption rates, and simple modification process .…”

Section: Introductionmentioning

confidence: 99%

Understanding the Adsorption Behavior and Mechanism of Pt(IV) and Pd(II) on Super Amino-Modified Monodispersed PGMA Microspheres

Wang,

et al. 2023

Ind. Eng. Chem. Res.

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The present investigation described the application of high-capacity amino-group-functionalized polyglycidyl methacrylate monodispersed microspheres (PGMA-N) in the adsorption of Pt(IV) and Pd(II) ions from simulated wastewaters. The adsorption capacities of Pt(IV) and Pd(II) on PGMA-N were determined to be 3.93 and 4.99 mmol•g −1 , respectively, at 298 K and pH ∼ 4. These capacities are greater than those reported for other adsorbents in the literature. Rapid adsorption kinetics were observed for Pt(IV) and Pd(II) on PGMA-N; equilibrium was reached within 15 min. Co 2+ , Cu 2+ , Ni 2+ , Fe 3+ , Al 3+ , and Cr 3+ were utilized as representatives for competitive adsorption of metal ions, and the good separation selectivity of PGMA-N was observed for Pt(IV) and Pd(II) at pH 1−3. The pH range in which the adsorbent demonstrated optimal selectivity was extended to 1−6 with the addition of EDTA. The −NH 2 , −NH− functional groups on PGMA-N form stable, five-membered chelate rings through synergistic coordination with Pt(IV) or Pd(II), as determined by zeta potential, pH titration, XRD, FTIR, and XPS analysis.

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“…Significant efforts have been dedicated to surface functionalization of NPs in order to prevent their aggregation, which can be achieved through two main approaches: (1) chemical modification, − which includes both “graft to” and “graft from” methods, and (2) physical adsorption of dispersants. − These studies have provided both theoretical and experimental foundations for modifying effectively surface structure of NPs to prepare stable dispersion systems. In the case of pigments, introducing reactive groups on the surface and utilizing sequence condensation reactive has led to stronger stability of pigment suspensions .…”

Section: Introductionmentioning

confidence: 99%

Photo-Cross-Linked Polymeric Dispersants of Comb-Shaped Benzophenone-Containing Poly(ether amine)

Liu

Zhu

Fan

et al. 2023

ACS Appl. Mater. Interfaces

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Efficient dispersion of nanoparticles (NPs) is a crucial challenge in the preparation and application of composites that contain NPs, particularly in coatings, inks, and related materials. Physical adsorption and chemical modification are the two common methods used to disperse NPs. However, the former suffers from desorption, and the latter is more specific and has limited versatility. To address these issues, we developed a novel photo-cross-linked polymeric dispersant, comb-shaped benzophenone-containing poly(ether amine) (bPEA), using a one-pot nucleophilic/cyclic-opening addition reaction. The results demonstrated that the bPEA dispersant forms a dense and stable shell on the surface of pigment NPs through physical adsorption and subsequent chemical photo-cross-linking, which effectively overcome the drawbacks of the desorption occurred in physical adsorption and the specificity of the chemical modification. By means of the dispersing effect of bPEA, the obtained pigment dispersions show high solvent, thermal, and pH stability without flocculation during storage. Moreover, the NPs dispersants show good compatibility with screen printing, coating, and 3D printing, endowing the ornamental products with high uniformity, color fastness, and less color shading. These properties make bPEA dispersants ideal candidates in fabrication dispersions of other NPs.

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One-pot synthesis of block copolymer dispersant by ICAR ATRP with ppm copper catalyst and the dispersibility on pigment

Cited by 9 publications

References 50 publications

Polymer-modified regenerated cellulose membranes: following the atom transfer radical polymerization concepts consistent with the principles of green chemistry

Polymer-modified regenerated cellulose membranes: following the atom transfer radical polymerization concepts consistent with the principles of green chemistry

Understanding the Adsorption Behavior and Mechanism of Pt(IV) and Pd(II) on Super Amino-Modified Monodispersed PGMA Microspheres

Photo-Cross-Linked Polymeric Dispersants of Comb-Shaped Benzophenone-Containing Poly(ether amine)

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