Results 1 to 10 of about 5,940,572 (182)

Water Sorption by Polyheteroarylenes. [PDF]

open access: yesPolymers (Basel), 2022
The sorption–diffusion characteristics of rigid-chain glassy polymers based on polyheteroarylenes (PHAs) have been studied in a wide interval of relative humidity and temperatures of thermal treatment of the polymer sorbents.
Chalykh AE, Petrova TF, Ponomarev II.
europepmc   +4 more sources

Water Sorption in Glassy Polyvinylpyrrolidone-Based Polymers [PDF]

open access: yesMembranes, 2022
Polyvinylpyrrolidone (PVP)-based polymers are excellent stabilizers for food supplements and pharmaceutical ingredients. However, they are highly hygroscopic.
Dominik Borrmann   +2 more
doaj   +3 more sources

Predicting the Water Sorption in ASDs [PDF]

open access: yesPharmaceutics, 2022
Water decreases the stability of amorphous solid dispersions (ASDs) and water sorption is, therefore, unwanted during ASD storage. This work suggests a methodology to predict the water-sorption isotherms and the water-sorption kinetics in amorphous ...
Dominik Borrmann   +2 more
doaj   +4 more sources

Water Sorption and Mechanical Properties of Cellulosic Derivative Fibers. [PDF]

open access: yesPolymers (Basel), 2022
In this study, water vapor sorption, desorption properties and tensile mechanical properties of four cellulosic fibers, cotton (C), flax (F), viscose (V) and cellulose acetate (CA), were determined.
Simon M, Fulchiron R, Gouanvé F.
europepmc   +2 more sources

Evaluation of the Color Stability, Water Sorption, and Solubility of Current Resin Composites. [PDF]

open access: yesMaterials (Basel), 2022
This study aims to assess the color stability, water sorption, and solubility of 11 resin composites as commercially available dental products. Twenty samples (10 mm in diameter and 2 mm in thickness) of each material were fabricated using a customized ...
Huang W   +7 more
europepmc   +2 more sources

Water sorption behaviour of commercial furcellaran. [PDF]

open access: yesHeliyon, 2022
Water sorption isotherms are important tool for designing the technological processes and predicting stability and shelf life of food. The aim of the work was to determine the water sorption isotherms of commercial furcellaran at different temperatures (20, 35 and 50 °C) using a gravimetric method under different levels of relative humidity (19-95 ...
Eha K, Kaleda A, Menert A, Laos K.
europepmc   +4 more sources

Water sorption of gingiva-shade composites and its influence on color stability [PDF]

open access: yesFrontiers in Dental Medicine
BackgroundThis study aimed to ascertain the water sorption of three gingival shade esthetic materials and understand the correlation between water sorption and color change when immersed in common food colorants.MethodsDisc-shaped composites were ...
Shivaughn M. Marchan   +3 more
doaj   +2 more sources

Anomalous Water-Sorption Kinetics in ASDs. [PDF]

open access: yesPharmaceutics, 2022
Anomalous water-sorption kinetics in amorphous solid dispersions (ASDs) are caused by the slow swelling of the polymer. In this work, we used a diffusion–relaxation model with the Williams–Landel–Ferry (WLF) equation and the Arrhenius equation to predict the anomalous water-sorption kinetics in ASDs of poly(vinyl-pyrrolidone)-co-vinyl-acetate (PVPVA ...
Borrmann D, Danzer A, Sadowski G.
europepmc   +4 more sources

Water sorption and solubility of polyamide denture base materials

open access: yesActa Biomaterialia Odontologica Scandinavica, 2017
Purpose: Some patients experience adverse reactions to poly(methyl methacrylate)-based (PMMA) dentures. Polyamide (PA) as an alternative to PMMA has, however, not been well documented with regard to water sorption and water solubility. The aim of this in
Long G. Nguyen   +2 more
doaj   +2 more sources

Effect of Polystyrene Synthesis Method on Water Sorption and Glass Transition [PDF]

open access: yesMembranes, 2022
Commodity PS is synthesized via free radical polymerization, whereas PS in block copolymers (BCPs) is typically synthesized via living anionic polymerization.
Daniel T. Hallinan   +6 more
doaj   +2 more sources

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