Results 51 to 60 of about 2,743 (170)

Advances for biorefineries: glycerol hydrogenolysis to 1,3-propylene glycol [PDF]

, 2023
Humanity’s growing dependence on non-renewable resources and the ensuing environmental impact thus generated have spurred the search for alternatives to replace chemicals and energy obtained from petroleum derivatives.
Pompeo, Francisco, Gatti, Martín Nicolás, Nichio, Nora Nancy   +2 more
core  

Effect of pharmaceutically acceptable glycols on the stability of the liquid crystalline gels formed by poloxamer 407 in water

, 2002
The ability of poly(ethylene oxide)-poly(propylene oxide)-poly (ethylene oxide) (PEO-PPO-PEO) block copolymers (Poloxamers) to form "gels" (lyotropic liquid crystalline structures) in water is of interest to pharmaceutical applications.
Lindman, Björn, Alexandridis, Paschalis, Ivanova, R   +2 more
core   +2 more sources

Effects of exposition to glycol ethers on heart rate recovery, parasympathetic modulation and oxygen diffusion at rest and during exercise

Current Issues in Sport Science
Introduction Daily exposition to ether glycols is common. Caretakers using cleaning products are critically exposed by combining physical activity with exposition to highly concentrated products. Previous animal studies showed hemato-, respiratory and
Nicolas Bourdillon, Hélène Paschoud, Nancy B. Hopf, Jennifer Pache, Pascal Wild, Giorgio Manferdelli, Grégoire P. Millet, Myriam Borgatta   +7 more
doaj   +1 more source

Hazardous Substance Ecological Fact Sheet and Ecotoxicity Profile Propylene oxide

, 1988
Propylene oxide Oxirane, methyl- CAS number 75-56-9Propylene oxide (methyloxirane) is a colorless, flammable liquid used in the manufacture of polyurethanes, propylene and dipropylene glycols, lubricants, surfactants and oil demulsifiers.

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Conversion of 1,3-Propylene Glycol on Rutile TiO₂(110)

, 2016
The adsorption of 1,3-propylene glycol (1,3-PG) on partially reduced TiO2(110) and its conversion to products have been studied by a combination of molecular beam dosing and temperature-programmed desorption (TPD). When the Ti surface sites are saturated
R. Scott Smith (1276173), Zhenjun Li (275953), Zdenek Dohnálek (1274721), Long Chen (315739), Bruce D. Kay (1276170)   +4 more
core   +1 more source

Correlations for Easy Calculation of the Critical Coalescence Concentration (CCC) of Simple Frothers

, 2020
Can the critical coalescence concentration (CCC) of the flotation frothers be predictable? What is the relation between their molecular structure and their CCC values?
Karakashev, Stoyan I., Stoyan I. Karakashev, Mehmet Sabri Çelik, Çelik, Mehmet Sabri, Batjargal, Khandjamts, Grozev, Nikolay A., Khandjamts Batjargal, Guven, Onur, Nikolay A. Grozev, Boylu, Feridun, Onur Guven, ÖZDEMİR, Orhan, Feridun Boylu, Orhan Ozdemir   +13 more
core   +1 more source

New Elastomers Derived from Copolymers of Tetrahydrofuran and Propylene Oxide

, 1963
The homopolymers of tetrahydrofuran, polytetramethylene glycols, may be chain-extended to form polyurethane elastomers. These materials, while possessing a low glass point temperature, suffer from cold hardening, and it was decided to investigate ...
L. A. Dickinson
core   +1 more source

Solvent Replacement Strategies for Processing Pharmaceuticals and Bio-Related Compounds—A Review

Liquids
An overview of solvent replacement strategies shows that there is great progress in green chemistry for replacing hazardous di-polar aprotic solvents, such as N,N-dimethylformamide (DMF), 1-methyl-2-pyrrolidinone (NMP), and 1,4-dioxane (DI), used in ...
Jia Lin Lee, Gun Hean Chong, Masaki Ota, Haixin Guo, Richard Lee Smith   +4 more
doaj   +1 more source

Condensation of supersaturated vapors of hydrogen bonding molecules: Ethylene glycol, propylene glycol, trimethylene glycol, and glycerol

, 1996
The critical supersaturations required for the homogeneous nucleation (rate of 1 drop cm−3 s−1) of ethylene glycol, propylene glycol, trimethylene glycol and glycerol vapors have been measured over wide temperature ranges (e.g., 280–400 K) using an ...
El-Shall, M. Samy, Kane, David B., David Kane, M. Samy El-Shall   +3 more
core   +1 more source

Unique Behavior of Poly(propylene glycols) Confined within Alumina Templates Having a Nanostructured Interface. [PDF]

Nano Lett, 2020
Tarnacka M, Wojtyniak M, Brzózka A, Talik A, Hachuła B, Kamińska E, Sulka GD, Kaminski K, Paluch M.   +8 more
europepmc   +1 more source