Results 21 to 30 of about 16,082 (198)

Zeta Potential of Nanosilica in 50% Aqueous Ethylene Glycol and in 50% Aqueous Propylene Glycol

Molecules, 2023
A sufficient amount of ionic surfactants may induce a zeta potential of silica particles dispersed in water–glycol mixtures of about 100 mV in absolute value.
Marek Kosmulski, Marta Kalbarczyk
doaj   +1 more source

Glycerol Carbonate Solventless Synthesis Using Ethylene Carbonate, Glycerol and a Tunisian Smectite Clay: Activity, Stability and Kinetic Studies

Applied Sciences, 2023
Biodiesel is nowadays added in 5–10% v/v to diesel, and its production involves the parallel creation of a vast glycerol amount as a by-product. Despite its many applications, there is a surplus of glycerol (Gly) that has boosted the search for new ...
Yosra Snoussi, Itziar A. Escanciano, Mariana Alvarez Serafini, Neji Besbes, Juan M. Bolivar, Miguel Ladero   +5 more
doaj   +1 more source

New Synthesis Route for PHD Polyols [PDF]

, 2011
The synthesis of polyurea dispersion polyols (PHD) was developed using a new route via depolymerization of polyurethane polyureas by a mixture of at least two glycols in the presence of a consumable catalyst, i. e. a secondary aliphatic amine.
Behrendt, Gerhard, Evtimova, Rozeta, Herzog, Michael, Peshkov, Vladimir   +3 more
core   +1 more source

Temperature-Responsive Molecular Assemblies Using Oligo(Ethylene Glycol)-Attached Polyamidoamine Dendron Lipids and their Functions as Drug Carriers

Journal of Functional Biomaterials, 2020
Temperature-responsive nanocarrier systems using external stimuli are one of the most widely investigated stimuli-responsive strategies because heat is easy and safe to use for hyperthermia and controlled drug delivery.
Takuya Hashimoto, Yuji Hirai, Eiji Yuba, Atsushi Harada, Kenji Kono   +4 more
doaj   +1 more source

Pivalolactone, 1 interchange reactions with polypivalolactone [PDF]

, 1993
Ester interchange, alcoholysis, and acidolysis of polypivalolactone (PPVL) were studied by melting PPVL with bisphenol diacetates, 1, 4-butanediol, or aromatic diacids.
Bantjes, Adriaan, Does, Leen van der, Tijsma, Edze Jan, Vulic, Ivan   +3 more
core   +2 more sources

Ammonium adduct chemical ionization to investigate anthropogenic oxygenated gas-phase organic compounds in urban air [PDF]

Atmospheric Chemistry and Physics, 2022
Volatile chemical products (VCPs) and other non-combustion-related sources have become important for urban air quality, and bottom-up calculations report emissions of a variety of functionalized compounds that remain understudied and uncertain in ...
P. Khare, P. Khare, J. E. Krechmer, J. E. Krechmer, J. E. Machesky, T. Hass-Mitchell, C. Cao, J. Wang, F. Majluf, F. Majluf, F. Lopez-Hilfiker, S. Malek, W. Wang, K. Seltzer, H. O. T. Pye, R. Commane, B. C. McDonald, R. Toledo-Crow, J. E. Mak, D. R. Gentner, D. R. Gentner   +20 more
doaj   +1 more source

A Case Report of Angioedema and Anaphylactic Shock Induced by Ingestion of Polyethylene Glycol [PDF]

, 2020
Introduction: We report one of few documented cases of a severe anaphylactic reaction with angioedema to polyethylene glycol (PEG).Case Report: The patient presented 30 minutes after onset of his symptoms and quickly developed hypoxia and hypotension ...
Osborn, Lesley, Rossi, Amy
core  

Poly(ethylene glycol)s as grinding additives in the mechanochemical preparation of highly functionalized 3,5-disubstituted hydantoins

Beilstein Journal of Organic Chemistry, 2017
The mechanochemical preparation of highly functionalized 3,5-disubstituted hydantoins was investigated in the presence of various poly(ethylene) glycols (PEGs), as safe grinding assisting agents (liquid-assisted grinding, LAG).
Andrea Mascitti, Massimiliano Lupacchini, Ruben Guerra, Ilya Taydakov, Lucia Tonucci, Nicola d’Alessandro, Frederic Lamaty, Jean Martinez, Evelina Colacino   +8 more
doaj   +1 more source

Improving Water Resistance of Soy-Protein Wood Adhesive by Using Hydrophilic Additives

BioResources, 2014
Soy protein adhesives are good candidates for the replacement of formaldehyde-based adhesives due to environmental concerns. However, poor water resistance has limited their application.
Minzhi Chen, Yan Chen, Xiaoyan Zhou, Bitao Lu, Meiping He, Song Sun, Xi Ling   +6 more
doaj   +1 more source

Synthesis and Characterization of New Macrocyclic Polyether-Diester Ligands Containing A 4H-Pyran-4-One Subcyclic Unit [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1999
New macrocyclic polyether-diester ligands (3-5) containing the 4H-pyran-4-one subcyclic unit have been prepared by treating various glycols with dimethyl chelidonate (10).
Aziz Shahrisa, Reza Tabrizi
doaj