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Revision > Polymers > Flashcards

Polymers Flashcards

1
Q

Linear

A

High density polythene

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2
Q

Branched

A

Low density polythene

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3
Q

Types of polymerization

A

Addition:
Homopolymer: polythene, polypropene, acrylonitrile,teflon
Copolymer: Buna-S Buna-N,PHBV

Condensation:
Nylon 66, Nylon 6, Terylene, bakelite, melamine formaldehyde

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4
Q

Teflon catalyst

A

Persulphate

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5
Q

Chloroprene structure

A

4 C atoms
2 double bonds at the ends
C2 has a Cl

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6
Q

isoprene

A

4C atoms in main chain
2 double bonds at ends
C2 has a methyl

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7
Q

natural rubber

A

cis form of isoprene

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8
Q

glyptal monomers

A

glycol(ethylene glycol)

pthalic acid

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9
Q

Nylon2Nylon6

A

Glycine + Aminocaproic acid

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10
Q

urea formaldehyde

A

Unbreakable cups

laminated sheets

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11
Q

acrylonitrile uses

A

orlon(acrilan)

substitute for wool

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12
Q

Nylon 66 uses

A

Sheets

brushes bristles

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13
Q

Nylon 6

A

Tyre cords

fabrics ropes

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14
Q

Polystyrene

A

Insulating wrapping material

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15
Q

Dacron

A

Safety helmets

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16
Q

Melamine formaldehyde

A

Unbreakable crockery

17
Q

Bakelite

A

Switches, combs, utensils

18
Q

Buna N

A

Oil seals

Tank lining

Revision (74 decks)

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