Structure Property Relationships in Synthetic Polymers

Question 1

Polymers

Answer 1

large molecules made by covalently linking many small molecules

Question 2

Monomers

Answer 2

the small molecules that link to form a polymer

Question 3

Addition polymers

Answer 3

made by addition reactions (2 molecules combine to form a single product molecule), formed from alkenes and alkynes

Question 4

How does addition polymerization occur?

Answer 4

a molecule with an unpaired electron approaches a monomer, one e- from pi bond goes with free radical to form sigma bond and other lone e- bonds with next monomer

Question 5

Characteristics of polymers

Answer 5

varying and controllable properties, based on packing density, IMFs, molecules within it

Question 6

Cross link

Answer 6

a covalent sigma bond between 2 separate polymer strands not at the end of the ether strand (increase molecular weight and limit motion

Question 7

Conjugated diene

Answer 7

alkenes with a double bond, single bond, double bond configuration

Question 8

Copolymers

Answer 8

polymerizing a mixture of 2 or more monomers

Question 9

Characteristics of copolymers

Answer 9

distinctive properties depending on substance, can be tuned based on ratio of monomers

Question 10

Condensation polymer

Answer 10

a polymer formed via condensation reaction

Question 11

Polyester

Answer 11

a polymer where the individual units are held together by ester linkages

Question 12

Polyamide

Answer 12

a polymer in which the individual units are held together by amide linkages