ITECH 14 Nov 2022

Chain Growth Polymerization can have different subclassifications depending on

• the temperature

• nature of the initiator

• type of the monomer

• rates of polymerization

In which reaction the typical initiators include peroxides?

• coordination polymerization

• ionic polymerization

• condensation reactions

• radical polymerization

The slowest step that occurs in a chain growth polymerization is

• initiation step

• termination step

• propagation step

• chain transfer

One of the main advantage of anionic polymerization is:

• living polymers

• dead polymers

• high DP for temperatures

• homopolymers

Grignard reagents are used in

• cationic polymerization

• step growth polymerization

• radical polymerization

• anionic polymerization

In chain growth polymerization, the slowest step is

• Initiation Step

• Chain transfer

• Termination step

• Propagation step

In a polymeric reaction, steady state means

• ki = kt

• rp = ri

• ri = rt

• rp = rt

A living polymer is a product of

• anionic polymerization

• step growth polymerization

• cationic polymerization

• radical polymerization

A living polymer can be killed if

• the temperature is not controlled

• the reaction conditions (atmosphere/ reagents purity) controlled

• the reaction conditions (atmosphere/ reagents purity) not controlled

• pH is not controlled

Tags

NGSS.HS-PS1-5

The principal methods are: bulk, suspension, solution and

• cold polymerization

• hot polymerization

• polymerization reaction

• emulsion polymerization