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Comparative study on the properties of a bio-based copolymacrolactone system

Polymer Testing, 2022
The evaluation of the properties and characteristics of macromolecular compounds is essential, especially from the point of view of the potential uses of the studied compounds.
Aurica P. Chiriac +7 more
doaj +1 more source

New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization

Nanomaterials, 2022
Physical cryogels were obtained using the successive freeze–thaw technique of poly(vinyl alcohol) (PVA)/poly(ethylene brassylate-co-squaric acid) (PEBSA) solutions.
Bianca-Elena-Beatrice Crețu +5 more
doaj +1 more source

Preparation of an Antioxidant Assembly Based on a Copolymacrolactone Structure and Erythritol following an Eco-Friendly Strategy

Antioxidants, 2022
The study presents the achievement of a new assembly with antioxidant behaviour based on a copolymacrolactone structure that encapsulates erythritol (Eryt).
Aurica P. Chiriac +9 more
doaj +1 more source

Facile Synthesis of Pyrrolyl-Containing Semisquaraines in Water as Precursors for Non-Symmetric Squaraines

Compounds, 2022
One-step reactions between squaric acid and pyrroles, such as 3-ethyl-2,4-dimethyl-pyrrole and 1,2,5-trimethylpyrrole, in water provide the corresponding pyrrol-2-yl- and pyrrol-3-yl-containing semisquaraines in high yields. These semisquaraines serve as
Daniel D. Ta, Jeanne M. Favret, Sergei V. Dzyuba +2 more
doaj +1 more source

Squaric acid

, 2022
Inelastic Neutron Scattering spectrum of Squaric acid, C4H4O2, measured on the TOSCA instrument.
Parker, S.F.
core +1 more source

Effects of diagonal strains and H-bond geometry in antiferroelectric squaric acid crystals

Condensed Matter Physics, 2020
The proton ordering model of the phase transition and physical properties of antiferroelectric crystals of squaric acid is modified by taking into account the influence of diagonal lattice strains and of the local geometry of hydrogen bonds, namely of ...
A.P. Moina
doaj +1 more source

Immune Response to Conjugates of Fragments of the Type K9 Capsular Polysaccharide of Acinetobacter baumannii with Carrier Proteins

Microbiology Spectrum, 2022
The clonal bacterial species Acinetobacter baumannii is an emerging multidrug-resistant pathogen which causes high-lethality infections. Cells of A. baumannii are surrounded by the type-specific capsular polysaccharide (CPS), which provides resistance to
Natalia Rudenko +13 more
doaj +1 more source

Experimental and Theoretical Study of Aromaticity Effects in the Solid State Architecture on Squaric Acid Derivatives

, 2016
In this manuscript, the aromaticity of the four-membered ring in squaric acid derivatives and, particularly, how it changes when it participates in noncovalent interactions are studied combining experimental observations and theoretical analysis using ...
Rafel Prohens (1411240) +4 more
core +3 more sources

Spontaneous Regression of Palmar Warts after Suffering from Diffuse Contact Dermatitis against Alkyl Bromide

Case Reports in Dermatology, 2021
Contact immunotherapy with several sensitizing chemicals such as diphenylcyclopropenone (DPCP) or squaric acid dibutyl ester (SADBE) have been used for the treatment of recalcitrant or multiple warts. Here, we report a case of multiple verrucae vulgaris (
Gyohei Egawa, Tetsuya Honda, Kenji Kabashima +2 more
doaj +1 more source

Crystal structure of 2-(azaniumylmethyl)pyridinium bis(hydrogen squarate)

Acta Crystallographica Section E: Crystallographic Communications, 2017
The asymmetric unit of the title compound, C6H10N22+·2C4HO4−, comprises two hydrogen squarate (Hsq−; systematic name: 2-hydroxy-3,4-dioxocyclobutanolate) anions and a 2-(azaniumylmethyl)pyridinium dication.
Nina Salamzadeh +3 more
doaj +1 more source

crystal structure
ethylene brassylate
phase transition

squaramide
alopecia areata