- #1
rexol
- 13
- 0
This is not a specific question. it's just common sense. all temp values in celsius.
The impact values of polymers are definitely astonishing when i think at the molecular level
it is said that increasing the molecular weight of the chains increase the impact strength.
consider same polydispersity index (Mw / Mn).
now consider a cross section where u are applying the impact.
won't there be less number of chain ends to absorb the impact? so, impact strength should decrease right?
also, how does Polycarbonate have such a high impact strength at 0. it's glass transition is 140 !
The impact values of polymers are definitely astonishing when i think at the molecular level
it is said that increasing the molecular weight of the chains increase the impact strength.
consider same polydispersity index (Mw / Mn).
now consider a cross section where u are applying the impact.
won't there be less number of chain ends to absorb the impact? so, impact strength should decrease right?
also, how does Polycarbonate have such a high impact strength at 0. it's glass transition is 140 !