Results 1 to 10 of about 19,222 (260)
The biodegradable cellulose-derived polyol and polyurethane foam
Polymer Testing, 2021 The method of polyol synthesis from cellulose, glycidol, and ethylene carbonate in water was elaborated. The obtained polyol was characterized by IR, 1H NMR and MALDI ToF spectroscopy. The polyol was then used to obtain rigid polyurethane foam. That foam
Renata Lubczak, Jacek Lubczak
exaly +3 more sources
Fast and Selective Degradation of Biomass for Xylose, Glucose and Lignin under Mild Conditions
Molecules, 2023 The conversion of lignocellulose into valuable chemicals has been recognized as the key technology in green chemistry. However, selective degradation of hemicellulose and cellulose with the production of lignin is still a challenge. Therefore, a two-step
Shangzhong Zhang +7 more
doaj +1 more source
Molecules, 2021 This study aims to determine the effect of fast cooling (quenching) on thermal properties, mechanical strength, morphology and size of the AgNWs. The synthesis of AgNWs was carried out at three different quenching-medium temperatures as follows: at 27 °C
Junaidi Junaidi +4 more
doaj +1 more source
Xylitol and Maltitol Improve the Rheological Property of Kappa-Carrageenan
Foods, 2021 To further extend the use of κ-carrageenan (κ-C) in real food systems (such as beverages), the understanding of gelation properties of κ-C with the presence of food ingredients is critical.
Min Huang +3 more
doaj +1 more source
e-Polymers, 2021 In this article, five kinds of soybean oil-based polyols (polyol-E, polyol-P, polyol-I, polyol-B, and polyol-M) were prepared by ring-opening the epoxy groups in epoxidized soybean oil (ESO) with ethyl alcohol, 1-pentanol, isoamyl alcohol, p-tert ...
Yang Fukai +3 more
doaj +1 more source
Preparation of Polyurethane/Clay Nanocomposites: Investigating the Dispersion of Organoclays in PTMEG [PDF]
علوم و تکنولوژی پلیمر, 2007 Good dispersion of nano-particles in polymer matrices is a crucial parameter in determining the final properties of polymer nanocomposites. In this work, the distributions of Cloisite 30B, Cloisite 10A and Cloisite 93A in PTMEG, popular polyols in the ...
B. Kaffashi +2 more
doaj +1 more source
The cryoprotective effects of erythritol on frozen-thawed ram sperm [PDF]
The Iranian Journal of Veterinary Science and Technology, 2019 This study was conducted to evaluate the effect of replacing glycerol with erythritol on cryopreservation of ram spermatozoa. Semen samples (n=24) were collected from four rams in six times. In each session, the collected ejaculates (n=4) were pooled and
Majid Alaeipour +1 more
doaj +1 more source
Horticulturae, 2021 This study investigates the influence of polyol compounds (sorbitol and erythritol) on the osmotic dehydration process of pomegranate seeds. The efficacy of the osmotic dehydration process was estimated based on the determination of water loss, weight ...
Brahim Bchir +6 more
doaj +1 more source
Comparison of selectivity of ethylene glycol synthesis and glyceraldehyde biomolecule through Formose reaction in water and methanol solvent [PDF]
شیمی کاربردی روز, 2022 In the present paper, the Formose reaction to produce polyols in methanol solvent in the presence of an aerosil (fumed silica) catalyst is first investigated.
Arash Vojood +4 more
doaj +1 more source
Room Temperature Surfactant-Free Synthesis of Gold Nanoparticles in Alkaline Ethylene Glycol
Chemistry, 2023 Gold nanoparticles are easily obtained by a range of room temperature processes. In particular, polyols-based syntheses performed in alkaline conditions without the need for surfactants lead to small size nanoparticles around 10 nm in diameter.
Ditte Røjkjær Rasmussen +2 more
doaj +1 more source