redemption

Which of the following does not affect the physical properties of a polymer?

• Polarity of side groups

• The use or more than one monomer

• Polymer chain length

• Melting points

Thermosetting polymers burn and decompose when heated unlike thermoplastic polymers which soften and can be remoulded/recycled.

• True

• False

Since most polymers are made from non-renewable resources, they pose an environmental risk

• False

• True

What is the empirical formula of the monomer propene?

• CH

• CH2

• CH3

• C3H6

A copolymer is a polymer made from

• More then one monomer species

• Two different types of polymers

• Two similar polymers

• Monomers and a separate compound

What CANNOT form a polymer

• Monomers

• Polymers

• Alkanes

• Alkenes

There are two types of ethene polymers. High density polyethylene and low density polyethylene

• True

• False

Addition polymers are formed from

• Reactions containing monomers with carbon-carbon double bonds

• Breaking a hydrogen-carbon bond in two monomers then adding the monomers together

• Involves intermolecular forces adding to monomers together

• Holds two or more monomers in a crystal lattice

The monomer of vinyl chloride polymer (shown below)

• CH2CHCl

• CH3CHClCH2CH2Cl

• CH3CH2Cl

• CH2CHClCH2CHCl

Compared to thermosetting polymers, thermoplastic polymers

• Are harder to melt

• Are easier to remold

• More resistant to impact

• Have weaker capacity to be recycled