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

Hybridization, hybridization in hydroxyl group

hybridization in hydroxyl group

Explain the two solids and a solvent - phase diagram, Explain the Two solid...

Explain the Two solids and a solvent - Phase Diagram? The phase diagram in Figure on the next page is for a ternary system of water and two salts with an ion in common. There i

Addition polymerization, Addition polymerization: It involves following th...

Addition polymerization: It involves following three mechanisms: 1.                 Free radical polymerization 2.                 Ionic polymerization mechanism 3.

Find the d-orbital splitting, In order to find the d-orbital splitting in a...

In order to find the d-orbital splitting in a square planar complex, it is easier to start with an octahedral compound where splitting patterns are known and then imagine slowly m

Bridging group in nomenclature compounds, Q. Bridging group in nomenclature...

Q. Bridging group in nomenclature compounds? A bridging group is indicated by putting the Greek letter 'p' immediately before its name and separated by hyphens from other ligan

Quantitative chemistry, A student wishes to prepare 250ml of a 0.20mol/L so...

A student wishes to prepare 250ml of a 0.20mol/L solution of oxalic acid (COOH)2.2H2O. a) Calculate the amount (no.of moles) of oxalic acid required. b) Calculate the mass of oxali

Early theories of matter, Q. Early Theories of Matter? In ancient Greec...

Q. Early Theories of Matter? In ancient Greece philosophers discussed the nature of matter. The philosopher Democritus held that matter was composed of elementary particles cal

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