For example , a greater ratio of hard to soft segments will result in a more rigid TPU , while the reverse is also true .
This allows urethane chemists to fine - tune the polymer 's structure to the desired final properties of the material .
A greater ratio of hard to soft segments will result in a more rigid TPU , while the reverse is also true .
This allows urethane chemists to fine - tune the polymer 's structure to the desired final properties of the material .