Quoting KristaAnne:" call 211 from any phone and get information on what resources are available to you. "
United Way will be able to help you find what resources are available in your area. Unfortunately, you're either going to have to get your kids vaccinated or find someone willing to help you as far as watching them so you can work. I don't know that there are any programs that assist in private childcare.
A domestic violence shelter would probably be the best route. What he is doing, from the sounds of it, is abuse and they will be best qualified to help you get on your feet and find the tools and resources to become independent.