Novel polyamidoamine‐based hydrogel with an innovative molecular architecture as a Co2+‐, Ni2+‐, and Cu2+‐sorbing material: Cyclovoltammetry and extended X‐ray absorption fine structure studies

Ferruti, Paolo; Ranucci, Elisabetta; Bianchi, Sabrina; Falciola, L.; Mussini, Patrizia R.; Rossi, Manuela

doi:10.1002/pola.21349

Cited by 18 publications

(12 citation statements)

References 23 publications

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“…Both resins visibly changed their morphology upon water and metal sorption (in particular, the original grains aggregated into rigid ice‐like flakes), but, unlike former cases,2 they both maintained their initial whitish color (Supporting Information, Part A, Fig. S1).…”

Section: Resultsmentioning

confidence: 99%

Fast and quantitative manganese sorption by polyamidoamine resins

Manfredi

Ranucci

Morandi

et al. 2012

J. Polym. Sci. A Polym. Chem.

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INTRODUCTION Polyamidoamines (PAA)-based resins have recently emerged as an advantageous tool for metal ion pollutant sorption in water treatments, complying with nearly all desirable requirements for this application, such as bio-and eco-compatibility, effectiveness in aqueous systems, low cost and easy scaling up of preparation, biodegradability, fast and quantitative sorption even at low pollutant concentration, reversibility, and chemical versatility allowing a virtually unlimited range of target-oriented architectures. 1,2 Recently, two novel PAA resins carrying amine and carboxyl groups, LYMA (Scheme 1) and LMT85 (Scheme 2) were prepared and tested for their sorption ability 3 adopting a standard set of six heavy metal ions (Cu 2þ , Pb 2þ , Ni 2þ , Co 2þ , Cd 2þ , and Zn 2þ ) corresponding to the DIN 38406-16 protocol for trace determination in water. 4 LYMA, whose repeating unit contained one carboxyl and two amine groups and was a mimic of L-lysine, proved selective for Cu 2þ and Ni 2þ , the other ions tested being negligibly sorbed. LMT85, whose repeating unit contained two amine and five carboxyl groups and was a mimic of EDTA, proved capable of rapidly and quantitatively sorbing all the ions tested either singly or in mixed solution. The sorption process was reversible and both resins were easily regenerated by acidification.Mn 2þ was not included in the set of ions so far considered. The problem of its removal from waters, typically concerning local environmental contexts and often concurrent with a high iron amount, arises from esthetic (dark brown/blackish layers on pipings that can collapse resulting in dark stains in laundry clothes and/or dark particles suspension in water), organoleptic (unpleasant taste of beverages such as tea or coffee), and health issues (particularly regarding neurological pathologies). 5,6 For instance, a Greek study testing the effects of Mn 2þ in drinking waters on aged people found a progressively higher prevalence of neurological signs of chronic poisoning with increasing metal concentration (from 0.04 to 2.3 ppm). 7 The maximum Mn 2þ concentration in drinking water in the US is presently 0.05 ppm. 8,9 Only very few studies of Mn-sorbing resins are presently available in the literature, 10-13 and the proposed materials do not fulfill all the aforementioned requirements. Among these, it is worth mentioning that an Mn 2þ chelating resin containing iminodiacetate groups recently proposed to obtain high-purity Mn for advanced electronics devices. 14 Lysine is reported to give complexes with many ions including Co 2þ , 15 in this respect behaving differently from LYMA that does not sorb this ion, and Mn 2þ . Further investigation has proved that Mn 2þ is well sorbed by LYMA, which toward this ion behaves as lysine mimic. The aim of this communication is to report on the performance of both LYMA and LMT85 as Mn 2þ sorbing resins by in situ monitoring the sorption kinetics with voltammetric techniques and using ad hoc-developed protocols. EXPERIMENTAL SynthesisLYMA and LMT85...

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Section: Resultsmentioning

confidence: 99%

Fast and quantitative manganese sorption by polyamidoamine resins

Manfredi

Ranucci

Morandi

et al. 2012

J. Polym. Sci. A Polym. Chem.

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“…Postfunctionalization of the MBL-based polymers can provide further variation of the properties. In addition, poly(amidoamine)s, which can be prepared by polyaddition of MBL with diamines, can open space for a novel class of polymers derived from MBL derivatives with wide application potential, similar to diacrylates-based poly(amidoamine)s, which were previously studied for different applications, such as wastewater treatment (Ferruti et al, 2006), fire protection (Manfredi et al, 2018), or paper conservation (Isca et al, 2019). Poly(amidoamine)s showed low cytotoxicity (Li et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Functional Polymers and Polymeric Materials From Renewable Alpha-Unsaturated Gamma-Butyrolactones

et al. 2019

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Sustainable chemistry requires application of green processes and often starting materials originate from renewable resources. Biomass-derived monomers based on five-membered γ-butyrolactone ring represent suitable candidates to replace sources of fossil origin. α-Methylene-γ-butyrolactone, β-hydroxy-α-methylene-γ-butyrolactone, and β-and γ-methyl-α-methylene-γ-butyrolactones bearing exocyclic double bond are available directly by isolation from plants or derived from itaconic or levulinic acids available from biomass feedstock. Exocyclic double bond with structural similarity with methacrylates is highly reactive in chain-growth polymerization. Reaction involves the linking of monomer molecules through vinyl double bonds in the presence of initiators typical for radical, anionic, zwitterionic, group-transfer, organocatalytic, and coordination polymerizations. The formed polymers containing pendant ring are characterized by high glass transition temperature (T g > 195 • C) and render decent heat, weathering, scratch, and solvent resistance. The monomers can also be hydrolyzed to open the lactone ring and form water-soluble monomers. Subsequent radical copolymerization in the presence of cross-linker can yield to hydrogels with superior degree of swelling and highly tunable characteristics, depending on the external stimuli. The five-membered lactone ring allows copolymerization of these compounds by ring opening polymerization to provide polyesters with preserved methylene functionality. In addition, both the lactone ring and the methylene double bond can be attacked by amines. Polyaddition with di-or multi-amines leads to functional poly(amidoamines) with properties tunable by structure of the amines. In this mini-review, we summarize the synthetic procedures for preparation of polymeric materials with interesting properties, including thermoplastic elastomers, acrylic latexes, stimuli-sensitive superabsorbent hydrogels, functional biocompatible polyesters, and poly(amidoamines).

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“…An amphoteric PAA with inter‐segmented structure obtained by synthesizing ISA23 in the presence of a second pre‐synthesized PAA carrying primary amino groups as side substituents (Table , No. 27) that acted as a macromolecular crosslinking agent was studied as a Co 2+ , Ni 2+ , and Cu 2+ ‐sorbing material . This resin exhibited a remarkable sorption capacity and sorption rate for the three ions considered, which were in situ monitored by cyclic voltammetry.…”

Section: Physico‐chemical Propertiesmentioning

confidence: 99%

Poly(amidoamine)s: Past, present, and perspectives

Ferruti

2013

J. Polym. Sci. Part A: Polym. Chem.

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Poly(amidoamine)s (PAAs) are a family of synthetic polymers obtained by stepwise polyaddition of prim-or sec-amines to bisacrylamides. Nearly all conceivable bisacrylamides and prim-or sec-amines can be employed as monomers endowing PAAs of a structural versatility nearly unique among stepwise polyaddition polymers. PAAs are degradable in aqueous media, including physiological fluids. Many of them are remarkably biocompatible notwithstanding their cationic character. PAAs are per se highly functional polymers and, in addition, can be further functionalized giving rise to an endless variety of polymeric structures meeting the requisites for applications in such apparently disparate fields as inorganic water pollutants scavengers, sensors, drug and protein intracellular carriers, transfection promoters, peptidomimetic antiviral and antimalarial agents. In this review, the unique chemistry of PAAs is discussed and a vast library of PAA structures and PAA applications from the beginning to the present days reported.

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Novel polyamidoamine‐based hydrogel with an innovative molecular architecture as a Co²⁺‐, Ni²⁺‐, and Cu²⁺‐sorbing material: Cyclovoltammetry and extended X‐ray absorption fine structure studies

Cited by 18 publications

References 23 publications

Fast and quantitative manganese sorption by polyamidoamine resins

Fast and quantitative manganese sorption by polyamidoamine resins

Functional Polymers and Polymeric Materials From Renewable Alpha-Unsaturated Gamma-Butyrolactones

Poly(amidoamine)s: Past, present, and perspectives

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