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

Objectives of transition elements of the f-block, Q. Objectives of transiti...

Q. Objectives of transition elements of the f-block? After studying this unit you should be able to: distinguish between transition and inner-transition elements, d

Westron, Explain westron its industrial manufacturing process.wetsron adva...

Explain westron its industrial manufacturing process.wetsron advantages and disadvantages in detail

Qualitative analysis, how to detect nickel radical in presence of Ferro cya...

how to detect nickel radical in presence of Ferro cyanide radical.

Determine electrovalent bonding, Out of the following, which compound will ...

Out of the following, which compound will have electrovalent bonding: (1) Ammonia                                     (2) Water     (3) Calcium chloride    (4) Chloro

Find relation between solute standard state and henry''s law, Find Relation...

Find Relation between Solute Standard State and Henry's Law? For a solution process in which species B is transferred from a gas phase to a liquid solution, find the relation b

Lactic acid, What are gredients for chemical and physical properties in lac...

What are gredients for chemical and physical properties in lactic acid?

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