Which one of the following is not a polyamide polymers:
(a) Nylon-6,6
(b) Nylon-6,10
( c) Glylptal
(d) Dacron

Options

A. a,b
B. c,d
C. a,c
D. a,b,c

Answer

To determine which of the following options is not a polyamide polymer, we will analyze each option based on the presence of amide linkages in their structures.

**Step 1: Understand what polyamide polymers are.**
Polyamide polymers are characterized by the presence of amide linkages (-CONH-). Common examples include various types of nylon.

**Step 2: Analyze each option.**

**(a) Nylon-6,6**
- Nylon-6,6 is a well-known polyamide. It is formed from hexamethylenediamine and adipic acid. The structure contains amide linkages.

**Conclusion:** Nylon-6,6 is a polyamide polymer.

**(b) Nylon-6,10**
- Nylon-6,10 is another type of polyamide. It is synthesized from hexamethylenediamine and sebacic acid. Like Nylon-6,6, it contains amide linkages.

**Conclusion:** Nylon-6,10 is a polyamide polymer.

**(c) Glyptal**
- Glyptal is a type of condensation polymer formed from the reaction of glycerol and phthalic anhydride. Its structure does not contain amide linkages; instead, it contains ester linkages.

**Conclusion:** Glyptal is not a polyamide polymer.

**(d) Dacron**
- Dacron is a polyester made from the polymerization of ethylene glycol and terephthalic acid. It contains ester linkages (-COO-), not amide linkages.

**Conclusion:** Dacron is not a polyamide polymer.

**Step 3: Identify the answer.**
From the analysis, both Glyptal and Dacron do not qualify as polyamide polymers. However, since the question asks for one option, we can conclude that:

**Answer:** (c) Glyptal is not a polyamide polymer.

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