‘The head-tail of tadpoles’: The dynamics of polymers with a very singular shape

They are in the shape of a tadpole and interact with each other by harpooning between head and tail, thus presenting unexpected physical properties. In the study, the researchers described how these particular constructs in dense solutions present much ‘slower’ molecular dynamics compared to that recorded by the two parts that make it up. This is because ‘heads’ and ‘tails’ tend to ‘capture’ each other, in a cascade process. The result is a much less fluid and much more viscous product.