Addition polymerization, Chemistry

Assignment Help:

Addition polymerization: It involves following three mechanisms:

1.                 Free radical polymerization

2.                 Ionic polymerization mechanism

3.                 Coordination polymerization mechanism

Free-radical polymerization: It involves following steps:

Initial step

1.                 Production of free radicals by the decomposition of compounds called initiators

R-R = 2R

Initiator free radicals

The decomposition of the initiator is splitting into two identical fragments called homiletic decomposition, where each fragment carrier's one unpaired electron with it called free radical.

Chain propagation step: The free radical (R) produced in the chain initiation step adds to an alkenes to form a new free radical, which then reacts with additional monomers in a chain reaction:

R + H2C = RCH2CH2

RCH2CH2 +CH2 = RCH2CH2 :CH2


Related Discussions:- Addition polymerization

Classification of polymers - thermoplastics, Classification of polymers - T...

Classification of polymers - Thermoplastics These are the polymers that can be simply softened repeatedly while heated and hardened when cooled along with little change in the

Univercity student, whats is surfactant and its applications in cloud point...

whats is surfactant and its applications in cloud point extraction ?

Equilibrium equation derivation, My problem is how should the specific equa...

My problem is how should the specific equation be derived using boundary condition. I have the final equation (which is based on Langmuir isotherm) and I know the boundary conditio

Antiknock compounds - characteristics of hydrocarbons, Antiknock Compounds ...

Antiknock Compounds - Characteristics of Hydrocarbons To decrease the knocking property or to enhance the octane number of a fuel certain chemicals are included in it. These ar

Error check, verify that less than 5% of the reactants have been consumed

verify that less than 5% of the reactants have been consumed

Ring substitution in aromatic ethers, Ring substitution in aromatic ethers ...

Ring substitution in aromatic ethers Alkoxy group is ortho and para directing and it directs the incoming groups to ortho and para position. It becomes the aromatic ring leads

EDTA, WHAT IS THE PRINCIPLE OF EDTA TITRATION N?

WHAT IS THE PRINCIPLE OF EDTA TITRATION N?

Chemical equation, why is it useful to use moles to measure chemical quanti...

why is it useful to use moles to measure chemical quantities

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd