Is Aniline formaldehyde resin thermoplastic or thermosetting?

Answer 1

"it is a thermosetting plastic because its formation is by Step reaction Polymerization(Condensation) which is a thermoplastic."

that is a uniquely idiotic answer.

there are plenty of instances when a condensation reaction leads to a thermosetting polymer: phenol formaldehyde resins are just one instance.

the key is the effective functionality of what is condensing. in unsubstituted (on the ring) aniline, the effective functionality is 3: both ortho positions and the para positions are open to the formaldehyde reaction. and that, my friends, leads to a crosslinked or thermoset polymer.

if your aniline is blocked in one of those positions, say, as in p-anisidine, then, yes, you will largely get a thermoplastic (save for the defects, etc.)

Answer 2

Aniline formaldehyde resin is a thermosetting resin. It undergoes irreversible chemical crosslinking during its curing process, resulting in a rigid and durable final product. Once formed, it cannot be softened or reshaped by heating.