Question

What is the softening point range of PVC?

(a) 150-200 °C

(b) 20-100 °C

(c) 80-140 °C

(d) 140-200 °C

The question was posed to me by my school teacher while I was bunking the class.

My query is from Ethenic Polymers topic in division Polymerization Industries of Chemical Technology

Answer 1

Right choice is (c) 80-140 °C

Explanation: PVC has a softening point ranging from 80 °C-140 °C increasing with the degree of after chlorination. After 140°C it decomposes liberating HCl.