C11 - Polymers 2️⃣✅ Flashcards

1
Q

What are monomers?

A

Small molocules that join together in log chains to make a polymer

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2
Q

What are polymers?

A

A long chain of small molocules

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3
Q

What is addition polymerisation?

A

The formation of long chain molocules from lots of small molocules joining together with no extra products produced

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4
Q

What is condensation polymerisation?

A

The formation of long chain molocules from lots of small molocules joining together with another small molocule (usually water/ H20) produced as well

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5
Q

What makes up a nucleotide?

A
  • phosphate
  • sugar
  • base
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6
Q

DNA is made up of ____?

A

two long polymers that wind around in a double helix

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7
Q

How many different monomers does DNA contain and what are they called?

A

4 and they are called nucleotides

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8
Q

What does DNA stand for?

A

Deoxyribonucleic acid

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9
Q

What is a repeating unit?

A

The smallest part of a polymer that repeats itself throughout the chain

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10
Q

What is polymerisation?

A

A reaction that turns multiple monomers into polymers

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11
Q

What are the 2 types of polymerisation?

A

addition and condensation

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12
Q

What kind of monomers are involved with addition polymerisation?

A

molocules with C=C bonds e.g. alkenes

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13
Q

What kind of monomers are involved with condensation polymerisation?

A

monomers with two functional groups

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14
Q

What other product is (usually) produced in condensation polymerisation?

A

water

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15
Q

What is a natural polymer?

A

A polymer produced naturally by organisms

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16
Q

Give 3 examples of natural polymers

A

polypeptides,DNA & carbohydrates

17
Q

What is a polypeptide?

A

A polymer made from many amino acids

18
Q

What are amino acids?

A

The building blocks for polypeptides and protiens

19
Q

What monomer makes up starch and cellulose?

A

glucose

20
Q

What monomers are DNA made of?

A

nucleotides

21
Q

How is DNA arranged?

A

double helix

22
Q

What 3 things do you have to do when drawing displatyed formulas of addition polymerisation?

A
  • Always draw bonds facing up and down, not diagonal
  • make sure the 2 empty bonds on each side of the repeating unit pass through the brackets
  • make sure the ‘n’ is in the middle left of the monomer and bottom right of repeating unit
23
Q

How do monomers need to be drawn in addition polymerisation?

A

With all the carbons coming off of the C = C double bond (they cant conme from anywhere else, have to come from the bond; add the remaining carbons to a single bond just with a small formula of the remaining carbon & hydrogen of the monomer e.g.

24
Q

Do you draw the repeating unit or monomer with a C=C double bond?

A

The monomer has a C=C whereas the repeating unit just has a single bond with 2 bonds poking out of the side of the brackets

25
Q

How do you name addition polymers?

A

Put the word ‘poly’ infront of the monomers name and then put the monomers name in brackets e.g. if it was ethene the addition polymer name would be poly(ethene)

26
Q

What do additon reactions require to work?

A
  • high pressure
  • catalyst
27
Q

What are the 3 important things required for condensation polymers?

A
  • Each monomer involved has to have at least two functional groups e.g. 2 OH
  • Needs to be at least 2 different functional groups overall across both monomers
  • Small molecule is given off in the process (generally water)
28
Q

What is the main difference between polyesters (condenstation polymers) and plastics (addition polymers)?

A

Polyesters are biodegradable as bacteria is capable of breaking down the ester link holding them together

29
Q

What do rectangles like this represent in a displayed formula?

A

The rest of the molecule

30
Q

What do polypeptides become upon folding up or combining with other polypeptides?

A

A protein

31
Q

What are 2 things that protiens do?

A
  • Catalyse chemical reactions as enzymes
  • Provide structure and strength to tissues
32
Q

What groups so amino acids contain?

A
  • Amino groups (NH2)
  • Carboxylic acid groups (COOH)
33
Q

Through what type of reaction do amnio acids join together?

A

Condenstation reactions (ploymerisation)

34
Q

What are the 3 different names for the bond that links the amino monomer and the carboxylic monomer?

A
  • amide bond
  • amide link
  • peptide bond
    all are acceptable
35
Q

What are all carbodydrates made up of? (3 things)

A
  • carbon
  • oxygen
  • hydrogen
36
Q

What are examples of carbohydrate polymers (or polysaccharides)

A
  • starch
  • cellulose
  • glycogen
37
Q

What are examples of carbohydrate monomers (or monosaccharides)

A
  • glucose
  • fructose
38
Q

Combining monomers (e.g. glucose) results in a ____________ (e.g. ____________)

A

Combining monomers (e.g. glucose) results in a polymer (e.g. glycogen)