The (Un)official write anything you want page

A post-it note contains a block copolymer. The glue is actually a polymer, and that polymer has two types of polymers along one chain. The reason why you can stick a post-it note over and over again is because the structures (on the nanocale, i.e. 10^-9 meters) break and reform. These special properties are why block copolymers are so fucking interesting. We can also trick these polymers to make the morphologies WE want rather than what the polymer wants to do.

So if we trick the polymers, we can make hard drives much faster and larger. For example, a smart phone now has 32 gigs of data. If my work pans out, it could hold 32 TERABYTES. It will also be faster at accessing this data.

I am currently studying WHY these polymer do what they do, both dynamically and thermodynamically.
 
Seriously though. They are so fucking cool. Block copolymers are fantastic materials, and we don't really understand them. They are everywhere, post-it notes, ass-phalt, and soles of shoes. If you think about things chemically, it's absolutely amazing how we designed these materials.