Question

Select the incorrect statement from the following option.

(a) Thermosets are formed by condensation polymerisation reactions

(b) Thermosets have 3-D, cross-linked network structure

(c) Thermosets soften on heating and stiffen on cooling

(d) Thermosets are generally insoluble in any solvent

I have been asked this question during an interview.

I want to ask this question from Polymer Classification in division Polymers of Engineering Chemistry I

Answer 1

Right choice is (c) Thermosets soften on heating and stiffen on cooling

The explanation is: Thermosets do not soften on heating. All the other options are correct. Thermosets are formed by condensation polymerisation reactions, have 3-D, cross-linked network structure and are generally insoluble in any solvent.