QUESTION 1: If the polymerization reaction did not work then what reasons could

Question

QUESTION 1: If the polymerization reaction did not work then what reasons could have contributed to the unsuccessful formation of the polymer nylon 6,6?

Nylon is prepared by the step-growth condensation polymerization of adipoly chloride with 1,6-hexanediamine. An interfacial polymerization technique consists of dissolving adipoyl chloride reagen in a water immiscible solvent (cyclohexane) and bringing the solution into contact with an aqueous solution of the diamine. The polymerization is used to generate nylon fibers.

QUESTION 2: Also, predict 3 different issues that may result in the failure of successfully forming nylon-6,6

Explanation / Answer

quesion 1

There may be several factors for which polymerization of adipoly chloride anf 1,6-hexanediamine does not take place.

1. The adipoly chloride may be exposed to moisture for long time before use as a result adipoly chloride might have converted to adipic acid

2. Presence of moisture in the solvent being used

3. HCl formed after condensation has not been removed

4. Temperature might not have been maintained during reaction

5. Personal error in the calculation of molar ratios of adipoly chloride and 1,6-hexanediamine

6. Contamination pf solvent with solvent like alchol whic can also react with adipoly chloride.

These are some of the possible reasons for unsuccessful formation of nylon-6,6 polymer

quetion 2

any of the above reason can lead to failure of sucessful polymerization of nylon-6,6

1. presence of moisture

2. Contamination of solvent with impurity

4. Molar ratio not being maintained

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects