Paper preservation with polyamidoamines: a preliminary study

Isca, Clelia; D’Avorgna, Silvia; Graiff, Claudia; Montanari, M; Ugozzoli, Franco; Predieri, Giovanni

doi:10.1007/s10570-016-0880-7

Cited by 17 publications

(5 citation statements)

References 33 publications

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“…A detailed discussion of experimental results is reported in the Supporting Information. However, the experimental data suggested that the Freundlich model (Equation (S1), Supporting Information) was followed by DB (Figure S5, Supporting Information), exhibiting a 1/ n value of 0.96, indicative of a favorable physical adsorption process (Table S7, Supporting Information); on the other hand, the Temkin equation well fitted the DR data (Figure S5, Supporting Information), with a positive value of B 1 parameter (Table S7, Supporting Information), in excellent agreement with results related to the endothermic nature of the process …”

Section: Resultssupporting

confidence: 76%

“…In accordance with similar studies reported in literature, the equilibrium adsorption isotherms were also studied applying the Langmuir, Freundlich, and Temkin models at DB and DR solutions in presence of PAA 6h. A detailed discussion of experimental results is reported in the Supporting Information.…”

Section: Resultsmentioning

confidence: 62%

“…Two peaks at 2952 and 2827 cm −1 were attributed to stretching vibrations of aliphatic CH 2 moieties present in the hydrogel skeleton. The weak signal at 3061 cm −1 , as suggested by Isca et al, was attributed to the vinyl CH stretching, suggesting the presence of unreacted terminal vinylic fragments. The band at 3259 cm −1 (NH stretching) indicated the presence of NH groups .…”

Section: Resultsmentioning

confidence: 72%

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Polyamidoamine‐Based Hydrogel for Removal of Blue and Red Dyes from Wastewater

Rizzi

Fiorini

Lamanna

et al. 2018

Advanced Sustainable Systems

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One of the major problems related to the use of dyes in industrial applications is their elimination from the water or soil and eventually their recovery and reutilization. In this context, a new biocompatible material, previously considered suitable for biomedical applications, is presented for the first time, as an innovative adsorbent material for wastewater treatment. A polyamidoamine‐based hydrogel, prepared by Michael‐type polyaddition in water, is used for efficiently adsorbing two anionic toxic textile dyes from aqueous solutions. Several parameters affecting the adsorption process, such as the pH of solutions containing dyes, the amount of hydrogel and dyes, and the effect of temperature, are investigated. Moreover, the hydrogel dehydration and swollen conditions by using dye water solution are studied by Thermo‐Gravimetry (TG) and Differential Scanning Calorimetry (DSC) analyses, finding that the dehydration temperature plays a relevant role in determining the subsequent adsorbing behavior. The material characterization shows that the adsorption process can be attributed to a combination of electrostatic attraction and intermolecular interactions between hydrogel functional groups and the dye molecules. Visible absorption spectroscopy and Fourier Transform InfraRed‐Attenuated Total Reflectance (FTIR‐ATR) support the findings. The kinetics of the dye adsorption process are also evaluated, together with the adsorption isotherms.

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Section: Resultssupporting

confidence: 76%

Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 72%

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Polyamidoamine‐Based Hydrogel for Removal of Blue and Red Dyes from Wastewater

Rizzi

Fiorini

Lamanna

et al. 2018

Advanced Sustainable Systems

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“…When the polymerization was performed under 100 • C, linear polymers were formed. For comparison, so far linear the poly(amidoamine)s were synthesized via reactions of diacrylates with primary (Isca et al, 2016) or secondary (Emilitri et al, 2005) amines or aminoalcohols (Elzes et al, 2016) and others usually possessed (hyper)branched structure (Wang et al, 2005). Therefore, the linear poly(amidoamine)s from MBL can provide a new approach toward synthesis of this class of functional polymers with novel properties worth to be investigated.…”

Section: Polyaddition Of Mbl With Diaminesmentioning

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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“…为了探讨硅氧烷基团对纸张性能改变的作用机理, 该课题组 [22] 采用含纤维素(D-葡萄糖)和木质素(香草醛、香草酸)主要官能团的模型分子与氨丙基甲基二乙氧基硅烷(AM)相互作用. Isca 等 [24] 研究了水溶性聚酰胺(PAAOH)用于纸张的脱酸, 并使用模型分子研究了 PAAOH 与纸张纤维素之间的结合能, 为考察材料与纸张作用机理提供了一种可供选择的研究方法, 此外, PAAOH 对真菌 E.chevalieri 的生长有良好的抑制作用, 脱酸后纸张同时具有一定的抑菌能力. 该课题组 [25] a [19] 自然老化旧书浸泡无溶剂 e [27] 宣纸浸泡 N-氨乙基-3-氨丙基-…”

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Recent Research and Prospect of Deacidifying Materials for Paper and Paper-based Cultural Relics

Jin¹,

Wang²

2023

Acta Chimica Sinica

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Paper and paper-based cultural relics are of great value as the main carriers for writing and preserving information. Acid-catalyzed hydrolysis is one of the most fatal reactions for paper degradation, and deacidification would effectively slow down the rate of its degradation and prolong the life time of paper. Therefore, the design and application of deacidifying materials with safety and effectiveness is the indispensable requirement for the protection of paper and paper-based cultural relics. Generally, alkaline materials, such as amino/amine compounds, magnesium/calcium hydroxides, oxides, carbonates are the mostly used deacidifying materials for their good paper compatibility, suitable alkalinity, low cost and low toxicity, which exhibit considerable paper deacidification performance. In this review, the recent research progresses of deacidifying materials on liquid phase deacidification process were reviewed, including the categories of deacidifying materials, preparation methods and the relationship between paper deacidification performance and structures of deacidifying materials, finally, the challenges and development of deacidifying materials were also discussed. For classification purpose according to chemical structure, deacidifying materials can be divided into four categories: ionic form, molecular form, micro/nano-scale form and composite form. The deacidifying materials with molecular form can significantly improve the mechanical properties of paper and show a certain deacidification effect, it is necessary to control the improvement of mechanical properties within reasonable ranges while considering the effective deacidification performance. Micro/nano-scale materials with large surface area, good penetration and high efficiency are the widely used deacidifying materials, which can achieve better deacidification effects at lower concentrations. The controlled alkalinity, high dispersion and suspension stability in solvents and uniform distribution in paper fibers of micro/nano-scale materials are highly demanded. Additionally, ionic form materials can interact with paper fibers more evenly through homogeneous deacidification process, but their alkaline reserve is relatively insufficient. And more insight is demanded into the co-existence stability of composite deacidifying materials and its contribution to paper protection. Keywords paper; acid degradation; deacidifying materials; protection of paper-based cultural relics

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Paper preservation with polyamidoamines: a preliminary study

Cited by 17 publications

References 33 publications

Polyamidoamine‐Based Hydrogel for Removal of Blue and Red Dyes from Wastewater

Polyamidoamine‐Based Hydrogel for Removal of Blue and Red Dyes from Wastewater

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

Recent Research and Prospect of Deacidifying Materials for Paper and Paper-based Cultural Relics

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