This is difficult to answer, as you can co-polymerize any 2, 3 or more ingredients. So, I worked with acrylic and non-acrylic polymers as well as co=polymers of 2 or 3 ingredients that modified the consistency of the final product.
As a result of that work, I guess I am unable to answer your question any better.
UPDATE: I think I see what you mean. Not all polymers need an acrylic backbone but may. I've used several different types. I hope that is of some use.