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PE
PP
PS
PVC
PET
PVAc
PC
Epoxy Nylon
Antioxidant
x
x
x
x
x
Heat stabilizer

x
x
UV stabilizer
x
x
x
x
x
Antistatic
x
x
x
x
x
x
x
x
Shock agent
x
x
x
x
x
x
x

Initiator
x
x
x
Catalyst
x
x
x
x
x
Lubricant
x
x
x
x
x
x
Plasticizer
x
x
x
Charges
x
x
x
x
x
x
x
x
x
side-impact
x
x
x
x
x
x
x
x
x
M.P Steven, Journal of Chemical Education, 1993, 444
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POLYMER STRUCTURE