What is the name of polymer which is also known as orlon ?

Explanation

**Step-by-Step Solution:**

1. **Identify the Trade Name**: The question asks for the name of a polymer known as "Orlon."

2. **Understand the Polymer**: Orlon is a trade name, which means it is a commercial name used for a specific polymer.

3. **Determine the Chemical Name**: The polymer referred to as Orlon is actually polyacrylonitrile.

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