What is another term for condensation polymerisation?

polycondensation
2. The earlier term ‘polycondensation’ was synonymous with ‘condensation polymerization’. The current definitions of polycondensation and condensative chain polymerization were both embraced by the earlier term ‘polycondensation’. Condensation polymerization is a form of step-growth polymerization.

What are the two types of polymerisation?

There are two general types of polymerization reactions: addition polymerization and condensation polymerization. In addition polymerization, the monomers add to one another in such a way that the polymer contains all the atoms of the starting monomers.

What do you mean by ring-opening polymerization?

Ring-opening polymerization is a reaction in which one polymer chain has a reactive center on its terminal end that reacts with another cyclic monomer, hence opening its ring system to form a longer polymer chain. The reactive center on the terminal end of the polymer chain can be ionic, cationic, or radical.

Which of the following is formed by condensation polymerization?

Condensation polymerization is used to make Dacron, Nylon-6.6, and Bakelite. Polyethylene, on the other hand, is created when a double bond is broken and there is no molecular elimination.

Why condensation polymerization is called step polymerization?

A condensation polymerization is a form of step-growth polymerization in which monomers and/or oligomers react with each other to form larger structural units while releasing smaller molecules as a byproduct such as water or methanol. However, strong acids such as sulfuric acid further accelerate the reaction.

How is condensation polymerization different from addition polymerization?

The main difference between addition and condensation polymerization is that in addition polymerization the polymers are formed by the addition of monomers with no by-products whereas in condensation polymerization, the polymers are formed due to the condensation more than one different monomers resulting in the …

What is needed for condensation polymerization?

In addition polymerisation , the monomers must have a C=C double bond . However, in condensation polymerisation , the monomers do not need a C=C double bond but they do need two functional groups.

What is an example of a ring-opening polymerization?

Some examples of cyclic monomers that polymerize through anionic or cationic ring-opening polymerization include cyclic ethers, lactones, lactams, carbonates, aziridines, and epoxides. Ring-opening polymerization can also proceed via free radical polymerization.

Where is ring-opening polymerization used commercially?

epoxy resin
The ring-opening polymerization has been used in the polymerization of commercial important polymers such as curing of epoxy resin from 3-membered ring cyclic ethers (epoxides), polyesters from cyclic ester (lactones), polyamides from cyclic amides (lactams), polysiloxanes from cyclic siloxanes, and so on.

What are the differences between addition and condensation polymerization?

What’s the opposite of polymerization?

The opposite process of polymerization is depolymerization where polymers are converted into a mixture of monomers.