Correct the following statements by changing the underlined part of the sentence.
Polyisoprene is an example of `ul("step-growth polymer")`.

Explanation

To correct the statement, we need to identify the type of polymerization involved in the formation of polyisoprene. Here’s the step-by-step solution:

### Step 1: Identify the Type of Polymerization
Polyisoprene is derived from the monomer isoprene. The polymerization process that leads to the formation of polyisoprene is crucial to determine.

### Step 2: Understand the Polymerization Process
Polyisoprene is formed through a specific type of polymerization known as **chain growth polymerization**. In this process, the monomers (isoprene units) add to the growing polymer chain one at a time, typically involving reactive intermediates.

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