Method for making nylon. This method is used to demonstrate polymerisation. First,an aqueous solution of hexane-1,6-diamine is added to a dish. Then a solution of decanedioyl dichloride in cyclohexane is carefully added to minimise mixing. The cyclohexane layer floats above the water layer. The polymer nylon-6.10 forms at the interface. A pair of tweezers is used to gently pull the nylon upward - as it is removed fresh nylon continues to be made at the interface. The nylon may be wound around a rod and a thread of nylon pulled from the dish for as long as both reagents are available | |
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Crédit: | Science Photo Library |
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