Been trying for days to crack this sure it staring me in the face understand princple just can't work out the one I have been given to do.

I have to polymerize
CH2=CH-CH-OH with a CH3 under CH next to the OH
I need to identify the monomer unit and what type of polymerization formed it.

I have been working on it being a additions polymerization as there is a alkene present but can't work out how it is formed, perhaps I am going in wrong direction. Really want 2 understand this don't want to b beaten

Would b very very grateful 4 some help

I can help you with that! Let's break down the problem step by step.

First, let's identify the monomer unit. In the given compound, CH2=CH-CH-OH with a CH3 under CH next to the OH, the monomer unit is CH2=CH-CH-O-CH3. This monomer unit is formed by replacing the OH group with a CH3 group.

Secondly, let's determine the type of polymerization that forms this monomer unit. You mentioned considering addition polymerization due to the presence of an alkene, and you are correct! Addition polymerization is the type of polymerization formed in this case.

In an addition polymerization, monomers with unsaturated bonds, such as alkenes, undergo a chemical reaction where the unsaturated bonds break and new bonds form. In this case, the double bond in the monomer CH2=CH-CH-OH is broken, and the CH3 group is added to it to form the monomer CH2=CH-CH-O-CH3.

To summarize:
- The monomer unit is CH2=CH-CH-O-CH3.
- The type of polymerization formed is addition polymerization.

I hope this helps you understand and solve the problem! If you have any further questions, feel free to ask.