Polymers 1 (separate chemistry only) Flashcards
(18 cards)
A polymer is made up of many __________. What one word completes the sentence?
monomers
Condensation polymerisation involves monomers that have how many functional groups?
at least two functional groups.
How many types of monomers are there in addition polymerisation?
Addition polymers are usually formed from 1 alkene.
Materials which must be made by humans and do not appear naturally are known as __________. What one word completes the sentence?
Synthetic materials are often referred to as “man-made”.
notes
The monomer for addition polymerisation should have a double bond between the carbon atoms.
In an addition polymerisation reaction, what must break to allow monomers to join together?
double bond
double bonds within the monomers must break to allow them to join together.
There are two types of polymerisation. What are they?
addition polymerization
condensation polymerization.
Many monomers join together to make a large molecule called a what?
a polymer
What is the name of the type of polymerisation that involves the loss of small molecules, such as water?
condensation polymerization
What polymer are the thin shopping (carrier) bags given out by supermarkets made from? Give the full name.
polyethylene
how can we tell that polyethene is a saturated or unsaturated molecule?
only contains C-C single bonds. This means that it is a saturated molecule.
Name the monomer in poly(ethene).
ethene
What are the small alkene molecules that make up a polymer called?
monomers
What type of polymers have the ester functional group?
polyester
What type of materials are formed when monomers join together?
polymers
Many monomer molecules react to form long chain polymer molecules.
What type of molecules, obtained from crude oil, can be joined together to give polymers?
The right answer is
“alkenes”
“monomers”
“monomer molecules”
Complete the following sentence. In condensation polymerisation two __________ monomers join.
different
The name of the monomer in the polymer polypropene is what?
propylene