Polymers 1

Question 1

General Info

Answer 1

Largest class
Carbon-based in nature
Molecular weight (MW) is most important
Inexpensive

Question 2

Manufacturing

Answer 2

Solution casting
Melt molding
Machining

Question 3

Mers

Answer 3

Single chemical unit of a polymer

Monomer

Question 4

Pendant Group

Answer 4

Side chain groups

Question 5

Polymer classification

Answer 5

Origin
Thermal props.
Structure
Chemical composition
Conformation and config.

Question 6

Origin

Answer 6

Natural - Cellulose, silk

Synthetic - PE, PVC

Question 7

Thermal props. 1

Answer 7

Thermoplastic - soft upon heating (reversible)
Elastomers - flexible, harden on heating (rubbers)
Thermosets - hard upon heating, irreversible (PMMA)

Question 8

Thermal props 2

Answer 8

Crystalline - melting temp

Amorphous - glass transition temp

Question 9

Structure

Answer 9

Linear - Single backbone
Branched - Small side chain
Cross-linked - Network

Question 10

Linear structure

Answer 10

Random coil
Rigid rod
Cyclic

Question 11

Branched structure

Answer 11

Randomly
Comb
Star

Question 12

Cross-linked structure

Answer 12

Also called gels
Makes membranes
Regular ladder
Regular Spiro
Irregular

Question 13

Chemical composition

Answer 13

Homopolymer
Heteropolymer
Copolymer

Question 14

Homopolymer

Answer 14

single RU monomer

Question 15

Heteropolymer

Answer 15

Backbone is not all carbon

Question 16

Copolymer

Answer 16

2 monomers

Question 17

Copolymer types

Answer 17

Block (AAABBBAAABBB)
Alternating (ABABAB)
Random

Question 18

Conformation and configuration

Answer 18

Location of side chains

Geometric isomers

Question 19

Geometric

Answer 19

Isotactic
Syndiotactic
Atactic

Question 20

Isotactic

Answer 20

Same side attached pendants

Question 21

Syndiotactic

Answer 21

Alternatively attached pendants

Question 22

Atactic

Answer 22

Randomly attached pendants

Question 23

Isomers

Answer 23

Double bond creating shape