Question:
What are the repeating monomer units of Nylon-6,6?
What are the repeating monomer units of Nylon-6,6?
Show Hint
The numbers in Nylon-6,6 represent the number of carbon atoms in each monomer:
6 carbons from adipic acid and 6 carbons from hexamethylenediamine.
6 carbons from adipic acid and 6 carbons from hexamethylenediamine.
Updated On: Apr 23, 2026
- Ethylene glycol and Terephthalic acid
- Adipic acid and Hexamethylenediamine
- Caprolactam
- Styrene
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
Nylon-6,6 is a synthetic polyamide polymer produced by a condensation polymerization reaction between a dicarboxylic acid and a diamine. During the reaction, monomers join together with the elimination of small molecules such as water. The numbers in the name Nylon-6,6 indicate the number of carbon atoms present in each of the two monomers used to form the polymer.
Step 1: Identify the monomers involved
Nylon-6,6 is formed from the following two monomers:
• Adipic acid \((HOOC-(CH_2)_4-COOH)\), which contains 6 carbon atoms.
• Hexamethylenediamine \((H_2N-(CH_2)_6-NH_2)\), which also contains 6 carbon atoms.
Step 2: Understand the polymerization reaction
During condensation polymerization, the carboxyl group (\(-COOH\)) of adipic acid reacts with the amine group (\(-NH_2\)) of hexamethylenediamine. This reaction forms an amide linkage (\(-CONH-\)) while releasing a molecule of water. \[ HOOC-(CH_2)_4-COOH + H_2N-(CH_2)_6-NH_2 \rightarrow \text{Nylon-6,6} + H_2O \]
Step 3: Formation of repeating units
The repeating unit of Nylon-6,6 contains amide bonds that connect alternating segments derived from adipic acid and hexamethylenediamine. These repeating units give nylon its strong and durable polymer structure. Conclusion:
Therefore, the repeating monomer units used to produce Nylon-6,6 are Adipic acid and Hexamethylenediamine.
Nylon-6,6 is a synthetic polyamide polymer produced by a condensation polymerization reaction between a dicarboxylic acid and a diamine. During the reaction, monomers join together with the elimination of small molecules such as water. The numbers in the name Nylon-6,6 indicate the number of carbon atoms present in each of the two monomers used to form the polymer.
Step 1: Identify the monomers involved
Nylon-6,6 is formed from the following two monomers:
• Adipic acid \((HOOC-(CH_2)_4-COOH)\), which contains 6 carbon atoms.
• Hexamethylenediamine \((H_2N-(CH_2)_6-NH_2)\), which also contains 6 carbon atoms.
Step 2: Understand the polymerization reaction
During condensation polymerization, the carboxyl group (\(-COOH\)) of adipic acid reacts with the amine group (\(-NH_2\)) of hexamethylenediamine. This reaction forms an amide linkage (\(-CONH-\)) while releasing a molecule of water. \[ HOOC-(CH_2)_4-COOH + H_2N-(CH_2)_6-NH_2 \rightarrow \text{Nylon-6,6} + H_2O \]
Step 3: Formation of repeating units
The repeating unit of Nylon-6,6 contains amide bonds that connect alternating segments derived from adipic acid and hexamethylenediamine. These repeating units give nylon its strong and durable polymer structure. Conclusion:
Therefore, the repeating monomer units used to produce Nylon-6,6 are Adipic acid and Hexamethylenediamine.
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Polymers Questions
- The monomers used in preparation of dextron are
- A hydrocarbon has molecular formula C2H6. Which of the class of hydrocarbons cannot have this formula?
- In nitroprusside ion, the iron and NO exist as Fe(II) and rather than Fe(III) and NO. These forms can be distinguished by:
- Solid is gradually dissolved in a solution. At which concentration of , precipitate of begins to form? for
- Which of the following is a biodegradable polymer?
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions