I've never heard of it done before, and I doubt you are the first to think of the idea. They dont sell the big of containers either, can you imagine how much it would take to fill that tire? And you've got quite a larger load on the tire compared to a bike.
Btw, the reason a lot of serious bikers dont use it either is because weight kills, and that stuff adds a few pounds to a bike. If you're competitive and have a 20-25lb bike, you dont want to add all that weight. Instead you keep a few spare innertubes in your pack and when you replace them enough you can do it in a matter of minutes.