Simplified structural formula of a dimer fatty acid. The structure may vary depending on the raw materials used. Characteristic is the cyclohexene ring formed by the Diels-Alder reaction.
Dimer acids, or dimerized fatty acids, are dicarboxylic acids prepared by dimerizing unsaturated fatty acids obtained from tall oil, usually on clay catalysts. The CAS number of the material is [61788-89-4]. Dimer acids are used primarily for synthesis of polyamide resins and polyamide hot melt adhesives. They are also used in alkyd resins, adhesives, surfactants, as fuel oil additives, lubricants, etc.[1] It is a light yellow or yellow viscous transparent liquid.
Dimer acid usually contains predominantly a dimer of oleic acid. It is also called C36 dimer acid.[2]
Trimer acid is a corresponding material where the resulting molecule consists of three fatty acid molecules. Its CAS number is [68937-90-6].
Dimer acids can be converted to dimer amines by reaction with ammonia and subsequent reduction.
^[1] Archived December 4, 2008, at the Wayback Machine
acid molecules. Its CAS number is [68937-90-6]. Dimeracids can be converted to dimer amines by reaction with ammonia and subsequent reduction. Dimer...
such as proteins or nucleic acids, form dimers. The word dimer has roots meaning "two parts", di- + -mer. A protein dimer is a type of protein quaternary...
organofluorine chemical compound, the ammonium salt of hexafluoropropylene oxide dimeracid (HFPO-DA). It can also be used more informally to refer to the group of...
through hydrogen bonds. For boiling to occur, either the dimer bonds must be broken or the entire dimer arrangement must be vaporized, increasing the enthalpy...
Hyponitrous acid is a chemical compound with formula H 2N 2O 2 or HON=NOH. It is an isomer of nitramide, H2N−NO2; and a formal dimer of azanone, HNO. Hyponitrous...
structures and implications for DNA integrity. Cyclobutane pyrimidine dimer (CPD) is a dimer which features a four-membered ring formed by the fusion of two...
Nordihydroguaiaretic acid (NDGA) is a classic lignan, a phenylpropane dimer linked by a bond between positions C8 and C8′, as opposed to a neolignan. It...
certain extent in pure acetic acid, but are disrupted by hydrogen-bonding solvents. The dissociation enthalpy of the dimer is estimated at 65.0–66.0 kJ/mol...
to dimethyl ketene dimer (4-isopropylidene-3,3-dimethyl-oxetan-2-one). The synthesis and characterization of hexadecyl ketene dimer, a key substance for...
ISBN 978-3-527-30673-2. Roman M. Balabin (2009). "Polar (Acyclic) Isomer of Formic AcidDimer: Gas-Phase Raman Spectroscopy Study and Thermodynamic Parameters". The...
ring-opening polymerization of lactide [–C(CH 3)HC(=O)O–] 2, the cyclic dimer of the basic repeating unit. PLA has become a popular material due to it...
Olivetolic acid is an organic compound that is an intermediate in the biosynthetic pathway of the cannabinoids in Cannabis sativa. The ester dimer of olivetolic...
mixture of linear monomer and cyclic dimer, trimer, and tetramer forms. The monomer is dimethyldioxirane. The dimer is known as diacetone diperoxide (DADP)...
A primer dimer (PD) is a potential by-product in the polymerase chain reaction (PCR), a common biotechnological method. As its name implies, a PD consists...
SJ (March 2001). "Human fatty acid synthase: role of interdomain in the formation of catalytically active synthase dimer". Proceedings of the National...
sustainable infrastructure for statewide folic acid education: The March of Dimes National Folic Acid Campaign". American Public Health Association Meeting...
most prevalent in some situations. Instead, glyoxalic acid often exists as a hydrate or a cyclic dimer. For example, in the presence of water, the carbonyl...
(February 2005). "Preparation of dehydro-l-ascorbic aciddimer by air oxidation of l-ascorbic acid in the presence of catalytic amounts of copper(II) acetate...
and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four...
pale yellow dimer. Both monomer and dimer are diamagnetic. Nitrosobenzene and other nitrosoarenes typically participate in a monomer-dimer equilibrium...
Iocarmic acid (trade name Dimer-X) is a pharmaceutical drug used as an iodinated contrast medium for X-ray imaging in the 1970s and 80s. Uses included...
Carbonic acid is a chemical compound with the chemical formula H2CO3. The molecule rapidly converts to water and carbon dioxide in the presence of water...
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