Answer:
Covalent bond.
Explanation:
As we know that the main component pf polymer is carbon.The carbon element present in the left side of the periodic table and carbon makes covalent bond.That is why in the polymer covalent bonding present.Polymer is the long chain of covalent bond.Covalent bond is also known as polar bond.We know that in the covalent bond balance electron are shared by both elements and to get stability.
The properties of covalent bond given as
1. Poor conductor of electricity and heat
2. Low melting point
3. Low boiling point
4.Generally brittle
