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Hexamethylenediamine or hexane-1,6-diamine, is the organic compound with the formula H 2 N(CH 2) 6 NH 2. The molecule is a diamine, consisting of a hexamethylene hydrocarbon chain terminated with amine functional groups. The colorless solid (yellowish for some commercial samples) has a strong amine odor.
1,6-Hexanediol can improve the hardness and flexibility of polyesters as it contains a fairly long hydrocarbon chain. In polyurethanes, it is used as a chain extender , and the resulting modified polyurethane has high resistance to hydrolysis as well as mechanical strength, but with a low glass transition temperature.
in which c i is the molar concentration of functional groups in the ith component of a monomer or polymer, t is the elapsed time, y is a coordinate normal to the surface/interface, D i is the molecular diffusion coefficient of the functional groups of interest, and J i is the thermodynamic rate of reaction. [9]
Nylon 66 (loosely written nylon 6-6, nylon 6/6, nylon 6,6, or nylon 6:6) is a type of polyamide or nylon. It, and nylon 6 , are the two most common for textile and plastic industries. Nylon 66 is made of two monomers each containing 6 carbon atoms, hexamethylenediamine and adipic acid , which give nylon 66 its name. [ 1 ]
It is a clear brown liquid. It reacts with water to give adipic acid. It is prepared by treatment of adipic acid with thionyl chloride. [1] Adipoyl chloride reacts with hexamethylenediamine to form nylon 6,6. [2]
The 1 crucial instruction Lorne Michaels gives the ‘SNL’ makeup team. Finance. Finance. Associated Press Finance. Super Bowl prices are down this year. StubHub explains why. Finance.
The right way to prevent infection is by washing with soap and water for at least 20 seconds. Cook shellfish at a temperature above 145 degrees to kill any virus that might be present before you ...
Tiptoe, a 175-pound tortoise famous on social media, and his owner documented fleeing the Palisades Fire on Tuesday.