Three dimensional molecules with cross links are formed in the case of a___________.

Options

A. Thermoplastic
B. Thermosetting plastic
C. Both
D. None

Answer

B

Explanation

Thermosetting plastics have three dimensional crosslinked structure. Such polymers are prepared in two steps. The first step is the formation of long chain molecules which are capable of further reaction with each other. The second step is the application of heat which cause a reaction to occur between the chains, thus producing a complex cross-linked polymer.