system
Given the following post, respond as if you're commenting on Reddit:
human
Can long molecules split because of motion/torque?

Say you have a very long molecule and somewhere in the middle there is a weak bond or there is significantly more mass on the ends of the molecular string. Can motion cause the molecule to break into two pieces?
gpt
Absolutely. The molecular weight of polymers is typically reduced by industrial processes that have a lot of shear, such as injection molding. I.e the size of the molecule is reduced due to the amount of pull exerted by the equipment.