Option (i) and (iii) are the answers.
Thermosetting polymers have a lot of branching cross links. They can’t be used again since they don’t melt when heated and can’t be remoulded.
Option (i) and (iii) are the answers.
Thermosetting polymers have a lot of branching cross links. They can’t be used again since they don’t melt when heated and can’t be remoulded.