In addition polymerization (sometimes called chain-growth polymerization),
a chain reaction adds new monomer units to the growing polymer molecule one at a time through double or triple bonds in the monomer
.
What is addition polymerization and condensation polymerization?
Addition polymerization is the
process of repeated addition of monomers that possess double or triple bonds to form polymers
. Condensation polymerization is a process that involves repeated condensation reactions between two different bi-functional or tri-functional monomers.
What is addition polymerization with example?
Addition polymers include
polystyrene, polyethylene, polyacrylates, and methacrylates
. Condensation polymers are formed by the reaction of bi- or polyfunctional molecules, with the elimination of some small molecule (such as water) as a by-product. Examples include polyester, polyamide, polyurethane, and polysiloxane.
What is used in addition polymerisation?
The C=C double bond in ethene
is involved in the polymerisation reaction. It allows ethene molecules to join together to form a single product , so it is an example of an addition reaction . Poly(ethene) is an addition polymer .
What is an example of polymerization?
Polymers are high-molecular-weight compounds, fashioned by the aggregation of many smaller molecules called monomers. An example of the first type of reaction is
the union of thousands of ethylene molecules that gives polyethylene
. …
How does addition polymerisation occur?
1.1.
In addition polymerization (sometimes called chain-growth polymerization),
a chain reaction adds new monomer units to the growing polymer molecule one at a time through double or triple bonds in the monomer
. … Chain initiation—usually by means of an initiator which starts the polymerization process.
What are the two types of polymerization?
There are two general types of polymerization reactions:
addition polymerization and condensation polymerization
.
What is the first step in addition polymerization?
There are three steps in this type of polymerization:
initiation
, propagation, and termination. During initiation, the monomer acquires an active site to become a free radical. The addition of initiators or other approaches such as absorption of heat, light or irradiation can trigger the initiation process.
What is called polymerization?
Polymerization, any
process in which relatively small molecules
, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer.
Why is it called addition polymerisation?
Small unsaturated ethene monomers join up by the opening of the double bond allowing them to join up to form a long carbon chain
. Polymers made in this way are called addition polymers. … Examples of other monomers are given below.
Is DNA an addition polymer?
DNA is a polymer made from four different monomers , called
nucleotides
. These join together in different combinations to make long strands. In a DNA molecule , two strands wrap around each other to form a double helix structure.
What is the functional group for addition polymers?
| Condensation polymerisation Addition polymerisation | Two types of monomer One type of monomer | Monomer must have two functional groups (one on each end) Monomer must have a C=C bond | Two products are formed – the polymer plus many small molecules (usually water) The only product is the polymer |
|---|
What is polymerization and types?
Polymerization is the process of forming larger macromolecules from simpler sub-units known as monomers. The two major types of polymerization are
addition polymerization and condensation polymerization
.
How do you do polymerization?
Assorted combinations of heat, pressure and catalysis alter the chemical bonds that hold monomers together
, causing them to bond with one another. Most often, they do so in a linear fashion, creating chains of monomers called polymers.
What is the main difference between the two types of polymerization?
| Addition Polymerization Condensation Polymerization | Monomers should either have a double or triple bond Monomers must have either two similar or different functional groups |
|---|
Is Terylene an addition polymer?
A.An
addition polymer with a benzene ring in every
repeating unit. Complete step-by-step answer:Terylene is condensation polymer which forms when ethylene glycol reacts with Terephthalic acid they give up one water molecule and forms a bond between oxygen and carbon. …
