Homework quiz 2 Week 7

The physical properties of a polymer are due to

• the size of the monomers

• the secondary bonding between the chains

• how the carbon atoms bond to the hydrogen atoms

• the interactions with light

Primary bonding between polymer chains results in

• A more rigid polymer

• A more hard wearing polymer

• a polymer that doesn't soften when heated

• all the answers

Examples of secondary bonds are

• dispersion forces

• dipole-dipole interaction

• hydrogen bonding

• all of the answers

The main difference between thermo polymers and thermosetting polymers is

• how tangled they are

• the atoms that make the chain

• the types of cross links between the chains

• the principle of enthalpy

When heated thermoset polymers

• soften up

• char

• dissolve

• sing