Hey, everyone. So here it says to draw the polymer created when phosgene reacts with 2 moles of 1,5-pentanediol. Alright. So phosgene represents this, and we're reacting with 2 moles of 1,5-pentanediol. So 1, 2, 3, 4, 5, OH.

1, 2, 3, 4, 5, and then OH. We know that we're going to have the loss of HCl in some way. We're not worrying about the mechanism here because, one, I didn't ask for it, and two, we know that this is going to follow our typical nucleophilic acyl substitution mechanisms that we saw within the carboxylic acid derivatives chapter. So if you need a refresher, make sure you go back there and take a look at that mechanism. Here, we're just worrying about what we're going to make at the end, which is our polymer.

So here we have our carbonyl, and it's going to be connected to the oxygens. And then 1, 2, 3, 4, 5, then OH, and then oxygen here. 1, 2, 3, 4, 5, and then OH. So this would represent our polymer that's created from reacting phosgene with our 2 moles of 1,5-pentanediol.