Write the steps involved in the free radical mechanism in polymerisation of ethylene.
Answers
Answered by
4
There are three steps involved in the free radical mechanism in polymerisation of ethylene :
1. chain initiative step
2. chain propagating step
3. chain terminating step
in the polymerisation of ethylene to polythene, ethylene is heating with benzoyl peroxide imitator. in this process a larger free radical is formed. this can see be understood with help of above equation. [ chain initiative step]
as the radicals react with another molecules of ethylene , another bigger sized free radical is formed. this can be understood with help of given 2nd equation.[ chain propagating step]
now , these free radicals combine in different ways to form polythene, this process is known as terminating process. this can be understood with help of given 3rd equation [ chain terminating step]
1. chain initiative step
2. chain propagating step
3. chain terminating step
in the polymerisation of ethylene to polythene, ethylene is heating with benzoyl peroxide imitator. in this process a larger free radical is formed. this can see be understood with help of above equation. [ chain initiative step]
as the radicals react with another molecules of ethylene , another bigger sized free radical is formed. this can be understood with help of given 2nd equation.[ chain propagating step]
now , these free radicals combine in different ways to form polythene, this process is known as terminating process. this can be understood with help of given 3rd equation [ chain terminating step]
Attachments:
Answered by
1
Answer:
Formation of free radicals : The first step involves clevage of benzoyl peroxide to form two carboxy radicals . These carboxy radicals immediately undergo decarboxylation to give phenyl intiator free radicals. (2) Chain initiating step : The phenyl radical thus formed adds to ethylene to form a new larger free radical.
Similar questions