INTRO TO POLYMER CHEM

Question 1

those that have side-[] chains that are
connected to the main chains.

Answer 1

branched

Question 2

the R group are situated randomly at the alternate sides of the chain

Answer 2

Atactic configuration

Question 3

CLASSIFICATIONS OF POLYMERS ACCORDING TO THERMAL RESPONSE

Answer 3

Thermoplastics (thermoplastic polymers)
Thermosets (thermosetting polymers)

Question 4

modified natural polymers

Answer 4

semisynthetic

Question 5

commercially sold water bottles, soft drink bottles, sport drink bottles, and condiment bottles

Answer 5

PET - polyethylene terephthalate

Question 6

occurs in nature

Answer 6

natural

Question 7

any plastic item not made from other 6 - cd’s, baby bottles, headlight lens

Answer 7

O - bisphenol A and others

Question 8

when all the repeating units along a chain are different

Answer 8

Copolymer

Question 9

those in which the repeat units are joined
together end to end in single chain

Answer 9

linear

Question 10

add monomers to the growing chain.

Answer 10

propagation

Question 11

CLASSIFICATIONS OF POLYMERS ACCORDING TO MOLECULAR STRUCTURE

Answer 11

linear
branched
cross-linked
network

Question 12

Addition or Chain Polymerization Mechanism

Answer 12

Initiation
Propagation
termination

Question 13

can be flexible or rigid is used for plumbing pipes, clear food packaging,

Answer 13

PVC - polyvinyl chloride

Question 14

become permanently hard during formation and do not soften upon heating

Answer 14

Thermosets

Question 15

TYPES OF GEOMETRIC ISOMERS

Answer 15

Cis- structure
Trans- structure

Question 16

An R group is positioned on opposite sides of the double bond

Answer 16

Trans- structure

Question 17

are formed from simple addition of monomer molecules to each other in a quick succession by a chain mechanism without the liberation of small molecules.

Answer 17

addition polymer

Question 18

milk and juice bottles, detergent, shampoo, grocery bags, cereal box liners

Answer 18

PE-HD - polyethylene high density
HDPE

Question 19

yogurt containers, deli containers, furniture, luggage, winter clothing insulation

Answer 19

PP - polypropylene

Question 20

dry cleaning bags, bread bags, newspaper bags, paper milk cartons, produce bags, hot/cold beverage cups

Answer 20

LDPE - polyethylene low density

Question 21

the R group are situated at the alternate sides of the chain

Answer 21

Syndiotactic configuration

Question 22

soften when heated and harden when cooled processes that are totally reversible and may be repeated

Answer 22

Thermoplastics

Question 23

is a molecular compound distinguished by a high molar mass, ranging into thousands and millions of grams, and is constructed by the sequential stringing together of smaller molecules called monomers.

Answer 23

polymer

Question 24

An R group is positioned on same side of the double bond

Answer 24

Cis- structure

Question 25

produces free radicals by breaking down a molecule

Answer 25

initiation

Question 26

when two radicals encounter one another and combine. it eliminates both radicals and stop the growth of polymer chain

Answer 26

termination

Question 27

adjacent linear chains are joined one to another at various positions by covalent bonds

Answer 27

cross-linked

Question 28

when all the repeating units along a chain are of the same type

Answer 28

Homopolymer

Question 29

occur between monomers containing polar groups which form polymer along with the elimination of small molecules

Answer 29

CONDENSATION POLYMERS

Question 30

the R group are situated at the same side of the chain

Answer 30

Isotactic configuration

Question 31

styrofoam - cups, plates, take-out containers

Answer 31

PS - polystyrene

Question 32

a three-dimensional [] polymer that is formed from three or more active covalent bonds of multifunctional monomers

Answer 32

network

Question 33

synthesized in the lab

Answer 33

synthetic

Question 34

CLASSIFICATIONS OF POLYMERS ACCORDING TO ORIGIN:

Answer 34

natural, semisynthetic, synthetic

Question 35

CLASSIFICATIONS OF POLYMERS ACCORDING TO MODE OF FORMATION:

Answer 35

addition polymers CONDENSATION POLYMERS Homopolymer Copolymer

Question 36

CLASSIFICATIONS OF POLYMERS ACCORDING TO MOLECULAR CONFIGURATION:

Answer 36

TYPES OF POLYMERIC STEREOISOMERS TYPES OF GEOMETRIC ISOMERS

Question 37

TYPES OF POLYMERIC STEREOISOMERS

Answer 37

Isotactic configuration Syndiotactic configuration Atactic configuration