acyl chloride functional group. Hydroxyl group and halide group
There are two chemicals used in this reaction, 1,6-hexadiamine (which is in a water solution) and adipoyl chloride (which is in a hexane solution). Think back to what you learned in this course about solutions and intermolecular forces. Adipoyl chloride do not donate H-bonds, and may only accept two. Because of the 1) differences in polarity, and 2) primarily 1,6-hexanediamine's ability to form hydrogen bonds with itself they will never mix together. For the Synthesis of Nylon using the condensation polymerization. There are two chemicals used in this reaction, 1,6-hexadiamine (which is in a water solution) and adipoyl chloride (which is in a hexane solution). Think back to what you learned in this course about solutions and intermolecular forces The first step in the reaction between a molecule of hexamethylenediamine and a molecule of adipoyl chloride (see Scheme 1.4 below). The hydrogen atom of the amine group belonging to hexamethylenediamine forms a hydrochloric acid (HCl) molecule with the chloride from the acid functional group. Transfer the 10 mL of 1,6-hexanediamine into a 50 mL beaker and add 10 drops of the sodium hydroxide solution to it. Tilt the beaker with the 1,6-hexanediamine and the sodium hydroxide solution in it at a 45 degree angle and SLOWLY add the 10 mL of the adipoyl chlor Multiple functional groups. A molecule can have more than one acyl halide functional group. For example, adipoyl dichloride, usually simply called adipoyl chloride, has two acyl chloride functional group s; see the structure at right.  The remaining adipoyl chloride molecule and the hexamethylenediamine molecule will join together to form a larger molecule (polymer). The molecule formed has an acid group at one end and an amine group at the other (Figure 1.3) and is a nylon 6,6 unit. Transfer the 10 mL of 1,6-hexanediamine into a 50 mL beaker and add 10 drops of the sodium hydroxide solution to it. Tilt the beaker with the 1,6-hexanediamine and the sodium hydroxide solution in it at a 45 degree angle and SLOWLY add the 10 mL of the adipoyl chlor Adipoyl chloride. A molecule can have more than one acyl halide functional group. For example, adipoyl dichloride, usually simply called adipoyl chloride, has two acyl chloride functional groups; see the structure at right. It is the dichloride (i.e., double chloride) of the 6-carbon dicarboxylic acid adipic acid. An acyl halide (also known as an acid halide) is a chemical compound derived from an oxoacid by replacing a hydroxyl group with a halide group. If the acid is a carboxylic acid, the compound contains a –COX functional group, which consists of a carbonyl group singly bonded to a halogen atom. Adipoyl chloride (or adipoyl dichloride) is a di-acyl chloride, with formula C 6 H 8 Cl 2 O 2. It is a hazardous chemical that evolves HCl when reacted with water. It should be handled with full protection under a fume hood. Adipoyl chloride can be reacted with hexamethylene diamine, another toxic chemical, to form a perfectly safe product: nylon. Adipoyl chloride can be prepared from adipic acid. Mechanism Polymerization of polyamides is the formation of the functional group, amide, between a carboxylic acid or carboxylic acid derivative and amine. It usualy needs two functional groups of each reactants, so we use adipoyl chloride and hexanediamine, which have two acid chloride and amine groups in the reactants. The carboxylic acids and its derivatives have a different reactivity from the ketones and aldehydes, even though they have same carbonyl group. They react with incoming nucleophile to give the carboxylic acid derivatives in the reaction of nucleophilic acyl substitution reaction.
http://biology-forums.com/index.php?topic=12063.0 http://biology-forums.com/index.php?topic=14952.0 http://home.engineering.iastate.edu/~mkessler/MatE453/Lab%20Instructions/Lab%201%20Synthesis_of_PS_and_Nylon_6,6.doc http://www.edurite.com/kbase/acyl-chloride-esterification http://home.engineering.iastate.edu/~mkessler/MatE453/Lab%20Instructions/Lab%201%20Synthesis_of_PS_and_Nylon_6,6.doc https://en.wikipedia.org/wiki/Acyl_halide https://en.wikipedia.org/wiki/Adipoyl_chloride http://pslc.ws/macrog/proposal/dreyfus/outcome/labmod/nylon66/mech.htm
what functional group is adipoyl chloride