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

Credit cards, Credit Cards Credit cards are offered by banks, as well ...

Credit Cards Credit cards are offered by banks, as well as other institutions such as credit unions. There are numerous credit cards currently available in the market, each wi

Preparative TLC, How many grams of silica gel and plaster of paris and volu...

How many grams of silica gel and plaster of paris and volume of water is needed to have a preparative TLC?

Determine the crude fibre content in the given of flour, Q. Determine the c...

Q. Determine the crude fibre content in the given of flour? To determine the crude fibre content in the given sample of flour. After undertaking this activity, you will be a

Properties of resorcinol - hydrocarbon, Properties of Resorcinol 1. Res...

Properties of Resorcinol 1. Resorcinol is a colourless crystalline solid, melting points 110°C. 2. Resorcinol is affected on exposure by light and air. 3. Resorcinol is s

Density of natural waters, Certain basic properties of lakes and oceans are...

Certain basic properties of lakes and oceans are important to understanding how they "work". One of these is the density of the water, and its changes. Dense (or heavier) water wan

Molar concentration of a saturated solution, The K sp of the phosphate fer...

The K sp of the phosphate fertilizer CaHPO 4 .2 H2O is 2.7 x 10 -7 at 25 o C.  What is the molar concentration of a saturated solution?  What mass of this compound will dissolve

Illustrate kinetic theory of matter, Q. Explain  heat according to kinetic ...

Q. Explain  heat according to kinetic theory of matter? Ans. On an atomic level the definitions of heat and temperature becomes more precise. According to the kinetic theory of

Steric effect, steric effect affecting the end product of organic compound

steric effect affecting the end product of organic compound

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