I agree with the answer of Nodirali S. Normakhamatov and recommend

Many methyl- and ethyl- derivative polymers are soluble in ethanol. For example, methyl and ethyl cellulose are freely soluble in ethanol.

In my opinion, there are many Polymers such as Poly(2-phenyl-2-oxazoline) (PPhOx) and polymethylmethacrlate (PMMA) are soluble in ethanol. Because the structures of PPhOx and PMMA

seem to be rather similar; in both cases the polymers contain

hydrophobic side chains (phenyl or methyl) and hydrogen bond

accepting groups (amide or ester) close to the polymer backbone.

As Dr.Sadanand Pandey mentioned, molecular structure of the polymer plays main role in it. But in any case, polymer's solubility depends on their molecular weight. More soluble is when polymer has low molecular weight.

In addition to your answeres there are other polymers can dissolved in ethanol such as PVA and CMC

I agree with the answer of Nodirali S. Normakhamatov and recommend

yes I agree with hum also

PEO also dissolved in ethanol...there many type of PVA , fully dissolved and partially dissolved

Good answer

thank you Haryanto

PVA, PEO, etc

Thank you Haryanto for your answer

https://pdfs.semanticscholar.org/3f51/9dcd32c958c6cc917e5e6ca55f1bb64d53e0.pdf

Dear Dr. Taghreed

Thank you for your answer with regards

Dr.Firyal

Solubility of polymer depends on many factors but the main factor is the polarity.