polymers Flashcards

1
Q

starch is a homopolymer of

A

glucose

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2
Q

cellulose is a homopolymer of

A

glucose

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3
Q

name the monomers that make up glycogen ,polyvinylchloride, teflon and nylon-6 resp

A

glycogen-glucose
polyvinylchloride-vinyl chloride
teflon-tetrafluoroethylene
nylon-6:caprolactum

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4
Q

give 4 examples of semisynthetic polymers

A

cellulose xanthate.
cellulose acetate
cellulose nitrate
rayon

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5
Q

what category on the basis of shape of polymers does nylon come under

A

linear

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6
Q

compare the densities of linear and branched polymers with reasoning

A

linear polymers have higher density as they closed packed ,thus occupying less volume and thus ,less density

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7
Q

amylopectin comes under what category of polymers on the basis of shape

A

branched

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8
Q

resins come under what type of polymers on the basis of shape

A

cross linked

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9
Q

dacron made of

A

terephalic acid and ethylene glyvol

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10
Q

nylon 6 ,6 made of

A
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11
Q

nylon 6

A

caprolactum

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12
Q

novolac on heating forms what

A

bakelite

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13
Q

how many sp2 n does melamine have

A

6

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14
Q

what is added to rubber for vulcanisation

A
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15
Q

natural ubber is a cis polymer or trans isomer

A
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16
Q

neoprene is polymer

A
17
Q

butyl rubber is a copolymer of

A
18
Q

buna s is a copolymer of

A
19
Q

gutta percha is a polymer of

A
20
Q

—– is resistant to action of oils,ozone and gasoline

A
21
Q

structure of melamine

A
22
Q

structure of bakelite

A
23
Q

is bakelite thermoplastic or thermosetting

A

thermosetting

24
Q

——is crease resistant and absorbs less moisture

A
25
Q

what type of rubber is used to make waterproof coats

A

natural rubber ….i e cis isoprene

25
Q

what type of rubber is used to make waterproof coats

A

natural rubber ….i e cis isoprene

26
Q

nylon 2 nylon 6 is a copolymer of

A

glycine and caproic acid

27
Q

unbreakable crockery is made from

A
28
Q

glyptal is a copolymer of

A

ethylene glycol and pthalic acid