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Caprolactam (CPL) is an organic compound with the formula (CH 2) 5 C(O)NH. This colourless solid is a lactam (a cyclic amide ) of caproic acid . Global demand for this compound is approximately five million tons per year, and the vast majority is used to make Nylon 6 filament, fiber, and plastics.
Although no longer economical, caprolactone was once produced as a precursor to caprolactam. Caprolactone is treated with ammonia at elevated temperatures to give the lactam: (CH 2) 5 CO 2 + NH 3 → (CH 2) 5 C(O)NH + H 2 O. Carbonylation of caprolactone gives, after hydrolysis, pimelic acid. The lactone ring is easily opened with nucleophiles ...
Caprolactam molecule used to synthesize Nylon 6 by ring opening polymerization. Nylon 6 or polycaprolactam is a polymer, in particular semicrystalline polyamide.Unlike most other nylons, nylon 6 is not a condensation polymer, but instead is formed by ring-opening polymerization; this makes it a special case in the comparison between condensation and addition polymers.
Their common names are β-propiolactam, γ-butyrolactam, δ-valerolactam, and ε-caprolactam. A lactam is a cyclic amide, formally derived from an amino alkanoic acid through cyclization reactions. The term is a portmanteau of the words lactone + amide.
Pig's caul fat. Caul fat, also known as lace fat, omentum, crépine or fat netting, is the thin membrane which surrounds the internal organs of some animals, such as cows, sheep, and pigs, also known as the greater omentum. It is used as a casing for sausages, roulades, pâtés, and various other meat dishes. [1]
For this reason it is effective in treatment of certain bleeding disorders, and it is sold under the brand name Amicar. [3] Aminocaproic acid is also an intermediate in the polymerization of Nylon-6, where it is formed by ring-opening hydrolysis of caprolactam. The crystal structure determination showed that the 6-aminohexanoic acid is present ...
Although a derivative of 12-aminododecanoic acid, it is made from cyclododecatriene.The triene is hydrogenated to the saturated alkane, cyclododecane.For the production of laurolactam, cyclododecane is oxidized with air or oxygen in the presence of boric acid and transition metal salts (e.g. cobalt(II) acetate), obtaining a mixture [3] of cyclododecanol and cyclododecanone.
CLA is found mostly in the meat and dairy products derived from ruminants. The two C=C double bonds are conjugated (i.e., separated by a single bond). CLAs are simultaneously both cis-fats and trans-fats , as one of the two C=C bonds is cis and the other trans .