Results 61 to 70 of about 35,219 (254)

A Comparative Study of Alkaline Hydrolysis of Ethyl Acetate Using Design of Experiments [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2013
Alkaline hydrolysis of ethyl acetate is essentially an irreversible and second order reaction. Industrial importance of the reaction product, sodium acetate, necessitate for process improvement in terms of maximum conversion and economical usage of raw ...
Afzal Ahmad   +4 more
doaj  

Physicochemical Characterization Patin Fish Oil (Pangasius micronema) Is Refined Using Bentonite and Activated Carbon.

open access: yesJournal of Food and Pharmaceutical Sciences, 2022
: This study aims to determine the physical and chemical quality of fish oil from the flesh of Pangasius microcinema. The quality of extracted fish oil can be improved through a refining process.
Indah Indah   +2 more
doaj   +1 more source

Cyclic pyrrole-imidazole polyamides targeted to the androgen response element [PDF]

open access: yes, 2009
Hairpin pyrrole−imidazole (Py-Im) polyamides are a class of cell-permeable DNA-binding small molecules that can disrupt transcription factor−DNA binding and regulate endogenous gene expression.
Chenoweth, David M.   +4 more
core   +2 more sources

Aminosulfonated Graphene as a Catalyst for Efficient Production of Biodiesel from Fatty Acids and Crude Vegetable Oils

open access: yesChemSusChem, EarlyView.
The covalent integration of amino and sulfonate groups on the graphene surface significantly enhances activity in acid‐catalyzed reactions, such as in biodiesel production and dehydration of saccharides. Developing such heterogeneous, recyclable catalysts is vital, as acid catalysis represents one of the most general and versatile strategies in organic
Aby Cheruvathoor Poulose   +6 more
wiley   +1 more source

Development of solid-phase extraction and methylation procedures to analyse free fatty acids in lipid-rich plant materials [PDF]

open access: yes, 2008
The objective of the present work was to develop a solid-phase extraction-gas chromatography (SPE-GC) method to isolate and measure free fatty acids (FFA) in lipid-rich seeds for immediate use in our investigations on the non-orthodox storage behaviour ...
De Kochko, Alexandre   +3 more
core  

Solid‐State Structures of Three Zinc(II) Coordination Polymers with 3‐(1H‐Imidazol‐1‐yl)propanoate Linkers Prepared in Water

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
This study investigates the water solution‐derived structure of three zinc(II) based coordination polymers with 3‐(1H‐imidazol‐1‐yl)propanoate ligands by single crystal and powder X‐ray diffraction, infrared spectroscopy supported by theoretical calculations, and thermogravimetry.
Katharina Kodolitsch   +5 more
wiley   +1 more source

Adhesive properties of water-soluble and biodegradable hot-melt adhesive based on partially saponified poly(vinyl acetate)

open access: yesMaterials Research Express, 2020
Partially saponified low molecular weight (LMW) PVAc was synthesized and blended with a tackifier for use as hot-melt adhesive with water-solubility and biodegradibility.
Yong-Ho Kim   +3 more
doaj   +1 more source

End-functionalized glycopolymers as mimetics of chondroitin sulfate proteoglycans [PDF]

open access: yes, 2010
Glycosaminoglycans are sulfated polysaccharides that play important roles in fundamental biological processes, such as cell division, viral invasion, cancer and neuroregeneration.
Brown, Joshua M.   +6 more
core   +2 more sources

Engineering Diesters From Saturated Fatty Acids and C2–C4 Diols: How Branching Influence Rheological, Flow, and Crystallization Properties

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The image illustrates the scope of the work, that is, the synthesis of diesters from saturated fatty acids (C9–C16) and linear or branched diols and the investigation of the relationship between molecular structure and rheological, crystallization, and oxidation stability properties.
Michele Emanuele Fortunato   +8 more
wiley   +1 more source

The Fusion of Elemental Sulfur With Waste Cooking Oil‐Based Derivatives: Beyond Renewability

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The fuse of two waste streams, elemental sulfur and waste cooking oil, is enabled by Inverse Vulcanization. The process might ensure the closed‐loop production of polymeric materials for a wide range of applications, beyond its sole potential renewability.
Sandric Afonso, Hatice Mutlu
wiley   +1 more source

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