Results 1 to 10 of about 6,842,021 (248)

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 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. Experimental data on water vapor sorption for polynaphthoyleneimidobenzimidazole (PNIB) and its copolymers with different ...
Chalykh AE, Petrova TF, Ponomarev II.
europepmc   +3 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

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

Assessing the impact of surface treatment, aging, and post-curing conditions on the water sorption and solubility of 3D-printed denture base resins compared to conventional and milled alternatives [PDF]

open access: yesBMC Oral Health
Background High water sorption and solubility in total denture base materials are primary factors contributing to prosthetic failure, as they compromise both mechanical and aesthetic properties.
Eymen Izzettinoglu, Erdal Eroglu
doaj   +2 more sources

Hygroscopic Mechanism of Blueberry Powder Based on Glass Transition Theory [PDF]

open access: yesShipin Kexue, 2023
Blueberry powder was made from two varieties of blueberries, ‘Jewelry’ and ‘Coast’, and the quality changes of blueberry powder before and after moisture sorption were studied.
CHU Wenjing, Sun yue, xiao liuliu, CHEN Andi, TAO Yani
doaj   +1 more source

Influence of moisture content on NO2 sorption ability of cedar wood

open access: yesJournal of Wood Science, 2021
This study examined the influence of moisture content (MC) on NO2 sorption ability of cedar (Cryptomeria japonica) wood using the specimens with different MCs. Four MC conditions were applied, namely 0%, 8.6%, 12.7% and 16.5%, based on the differences of
Miyuki Nakagawa   +3 more
doaj   +1 more source

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