Water soluble trehalose-derived oligoamides

Oliva, Rosangela; Federica, Albanese; Cipriani, Giacomo; Ridi, Francesca; Giomi, Donatella; Malavolti, Marino; Bernini, Lorenza; Salvini, Antonella

doi:10.1007/s10965-014-0496-2

Cited by 6 publications

(6 citation statements)

References 21 publications

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“…Method 1 proceeds through a reaction in Sovirel® tube, under nitrogen atmosphere, with a slight overpressure. This method, previously used for the synthesis of various oligoamides, 15,48 requires the presence of triethylamine as catalyst and methanol as solvent. An advantage of this method relies on the presence of the solvent, which guarantees a good temperature control preventing the formation of products with intense colours and leading to a good reproducibility of the results.…”

Section: Resultsmentioning

confidence: 99%

One-pot oligoamides syntheses from l-lysine and l-tartaric acid

et al. 2017

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Section: Resultsmentioning

confidence: 99%

One-pot oligoamides syntheses from l-lysine and l-tartaric acid

et al. 2017

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“…At the same time, hydroxylated and non-hydroxylated water-soluble oligoamides with a high affinity for polar materials have been synthesized by a polycondensation reaction between ethylene diamine or amino acids and diesters of dicarboxylic natural acids (e.g., L-tartaric acid, D(+)-glucaric acid and α,α-trehaluronic acid), and successfully tested as consolidation agents for waterlogged archaeological wood [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Low Fluorinated Oligoamides for Use as Wood Protective Coating

et al. 2022

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New highly hydrophobic fluorinated oligoamides were synthesized and studied as materials for the protection of non-varnishable wooden artifacts. The new oligoamides were designed to achieve the best performance (including high chemical affinity to the wood material) and the lowest environmental impact. In order to minimize the risk of bioaccumulation, short perfluoroalkyl side chains were reacted with oligoethylene L-tartaramide (ET), oligoethylene adipamide-L-tartaramide (ETA), oligoethylene succinamide-L-tartaramide (EST), oligoethylene succinamide (ES), and oligodiethylenetriamino-L-tartaramide (DT). Favorable reaction conditions were also adopted to obtain low molecular weight compounds characterized by non-film-forming properties and solubility or dispersibility in environmentally friendly organic solvents. Their behavior in terms of modification of the wood surface characteristics, such as wettability, moisture absorption, and color, was analyzed using a specific diagnostic protocol to rapidly obtain preliminary, but reliable, results for optimizing a future synthesis of new and tailored protectives. The influence of different monomer units on the reactivity, solubility, and hydrophobic properties of different oligoamides was compared showing ESF (contact angle 138.2°) and DF (132.2°) as the most effective products. The study of stability to photochemical degradation confirms ESF as promising protective agents for artefacts of historical and artistic interest in place of long-chain perfluoroalkyl substances (PFAS), products currently subject to restrictions on use.

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“…Hydroxyl moieties were introduced in the polymeric chain using starting compounds obtained from renewable sources. In particular, natural compounds or derivatives thereof, such as l ‐tartaric acid, α,α′‐trehalose, d (+)‐glucose, were used in polycondensation reactions with several diamines …”

Section: Introductionmentioning

confidence: 99%

TiO₂‐Oligoaldaramide nanocomposites as efficient core‐shell systems for wood preservation

Oliva

Salvini

Giulio

et al. 2015

J of Applied Polymer Sci

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Homogeneous core-shell systems were obtained with a growth, in controlled steps, of several oligoamides on TiO 2 nanoparticles. Derivatives of natural compounds, such as L-tartaric acid and a,a 0 -trehalose, were used as diesters in the polycondensation reactions with ethylenediamine. TiO 2 anatase was chosen because of its high photo-activity and its antimicrobial activity. The TiO 2 nanoparticles had been previously activated then functionalized using two different coupling agents, and finally, the TiO 2 -oligoamide nanocomposites were synthesized using two synthetic pathways. The final products were characterized by 1 H NMR, 13C NMR, FT-IR, and transmission electron microscope. These nanocomposites can show improved properties in comparison with the single components (TiO 2 nanoparticles or oligoamides), which are useful in many fields, such as antimicrobial coatings for surfaces in cultural heritage conservation. A nanocomposite (TiO 2 -polyethylenetartaramide) was used for applicative studies, and it has shown a good efficacy against fungal attack by Trametes versicolor on wood specimens (Fagus sylvatica). V C 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42047.

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Water soluble trehalose-derived oligoamides

Cited by 6 publications

References 21 publications

One-pot oligoamides syntheses from l-lysine and l-tartaric acid

One-pot oligoamides syntheses from l-lysine and l-tartaric acid

Low Fluorinated Oligoamides for Use as Wood Protective Coating

TiO₂‐Oligoaldaramide nanocomposites as efficient core‐shell systems for wood preservation

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Water soluble trehalose-derived oligoamides

Cited by 6 publications

References 21 publications

One-pot oligoamides syntheses from l-lysine and l-tartaric acid

One-pot oligoamides syntheses from l-lysine and l-tartaric acid

Low Fluorinated Oligoamides for Use as Wood Protective Coating

TiO2‐Oligoaldaramide nanocomposites as efficient core‐shell systems for wood preservation

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TiO₂‐Oligoaldaramide nanocomposites as efficient core‐shell systems for wood preservation