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

Explain salt bridge with its functions., Salt bridge is a U-shaped tube con...

Salt bridge is a U-shaped tube containing a semi-solid paste of some inert electrolyte like  KCl, KNO 3 , NH 4 Cl,  etc. in agar-agar and gelatin. An inert electrolyte is one which

Calomel electrode, Construction and working of calomel electrode with a lab...

Construction and working of calomel electrode with a labelled diagram

Physical properties of acetophenone - aldehydes and ketones, Physical prope...

Physical properties of Acetophenone - Aldehydes and Ketones a. Acetophenone is a colourless crystalline solid with melting point 20°C and boiling point 202°C. b. Acetophenon

S block., prperties of s block elements?

prperties of s block elements?

.bohr''s atomic model, what were the drawbacks of bohr''s atomic theory

what were the drawbacks of bohr''s atomic theory

Determing most ionic boonds, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE

Bond strength in hydrocarbons, Bond strength in hydrocarbons As much sh...

Bond strength in hydrocarbons As much shorter is the bond size, the greater is the compression among molecules atomic nuclei and therefore greater is the strength of that bond.

ANALYTICAL LAB, I NEED A DOCUMENT LOOKED AT FOR TOMORROW ITS CHROMATOGRA LA...

I NEED A DOCUMENT LOOKED AT FOR TOMORROW ITS CHROMATOGRA LAB AND ITS ASSESSED

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