plastics Flashcards
what are plastics ?
synthetic polymers
what are some examples natural polymers
DNA
RNA
Sugars
Protein
the US produces a _____ volume of _______ polymers than volume of steel, copper or aluminum.
LARGER: SYNTHETIC
what are addition polymers ?
monomers that add to the growing polymer chain–
Can change shape/structure /flexibility of monomer chains
a higher density polymer is..
More rigid and stronger
ex:milk carton
a lower density polymer is
Soft and stretchy
ex: Saran Wrap
stiffer monomers have..
more tightly packed molecules
ex:PVC
what are phthalates
plasticizers that increase their flexibility, transparency , durability and longevity
what are flame retardants
added to increase resistance to ignition, reduce flame spread, and prevent a polymer from dripping
how long does plastic take to decompose ?
1-450 years
what is the GPOGP
A surplus of microplastics that have been accumulated in the pacific ocean, caused by the circulation of subtropical gyres.
