Solutions of 1,6-hexanediamine and sebacoyl chloride are poured carefully into the same container. Nylon polymer forms at the interface of the two layers and can be pulled continuously from the solution in the form of a "rope" and wound around a cylinder.
H2N(CH2)6NH2 + ClCO(CH2)8COCl → —[HN(CH2)6NH-CO(CH2)8CO)]n— + nHCl
To Conduct Demonstration:
Safety and Disposal
Wear gloves and avoid getting these solutions on your hands. Rinse the nylon before touching it.
B.Z. Shakhashiri, Chemical Demonstrations, 1983.