Question

In: Chemistry

Discuss specific criteria which can be used to classify a given process as a living or...

Discuss specific criteria which can be used to classify a given process as a living or controlled process in living polymerization

Solutions

Expert Solution

Answer. The Specific criteria whice can be used to classify a given process as a living or controlled process in living polymerization is Chain growth polymerisation.

Addition polymerisation has the feaure of a chain reaction. The reactiove centre formed by the reaction of with a free radical , a cation ,& an anion. Polymerisation occures through the propagation of the active species by successive addition of a large no. of monomer molecules

The different steps are;-

a) Initiation; A free radical is highly reactive and can attack any molecule which either has a lone pair of electrom or is prepared to part with with one of its electron.The free radical attacks the double bond in the monomer molecule and produced a free radical with increase the number of carbon chain.

b) propagation; After initiation step, the radical site at the first monomer unit attacks the doublr bond of a fresh monomer molecule and free radical transfer from the first monomer unit to the 2nd by unpaired of electron.

c) termination: After propagation step, termination step comes.The growth polymer chain cease when the reaction centre is destroyed by one possible termination reaction.


Related Solutions

In the context of benefit – cost analysis what criteria can be used to classify benefits...
In the context of benefit – cost analysis what criteria can be used to classify benefits on one hand and costs on the other hand?
What criteria can be used to rank these projects? Which quantitative ranking method is better and...
What criteria can be used to rank these projects? Which quantitative ranking method is better and why? Does the ranking differ from an inspection of cash flows? Finally what kinds of investments projects have similar cash flows? Project Number 1 2 3 4 5 6 7 8 PVF @10% Initial Investment $2,000 $2,000 $2,000 $2,000 $2,000 $2,000 $2,000 $2,000 Year 1 $330 $1,666 $ $160 $280 $2,200 $1,200 $(350) 0.909091 2 $330 $334 $ $200 $280 $900 $60 0.826446 3...
What criteria should be used during the process of selecting amongst strategic alternatives? WHY? What criteria...
What criteria should be used during the process of selecting amongst strategic alternatives? WHY? What criteria should be taken into account when debating strategic alternatives. You should list possible strategic options and the criteria to consider when debating these choices. The analytical reasoning and rationale is crucial. Answering WHY after explaining WHAT is very important.
a.)Which of the following commands can be used to change the stateof a process,...
a.)Which of the following commands can be used to change the state of a process, including to stop a process?endkillstophaltb.)Responding to ping requests can leave a system vulnerable to which of the following?TCP wrappersDoS attacksMan-in-the-middle attacksAll of the abovec.)Which of the following is the de facto standard name resolution solution for the majority of systems connected to the Internet?DHCPLDAPDNSNISd.)DHCP stands for which of the following?Dynamic Host Configuration ProtocolDomain Host Configuration ProtocolDomain Host Configuration ProcessDynamic Host Configuration Processe.)After installing the correct...
Different types of software can be used for data managment. Excel and SPSS and discuss specific...
Different types of software can be used for data managment. Excel and SPSS and discuss specific SPSS software features that make it preferable to Excel for data managment. provide examples illustrating when electing to use the SPSS could be preferable to Excel and vice versa
Explain the constitutional process for the selection of federal judges. What are the criteria used by...
Explain the constitutional process for the selection of federal judges. What are the criteria used by presidents to make their selections? How do the criteria change if the president is a Democrat as opposed to a Republican? What is the role of the Senate? How has this role changed over the years? How is it different if the president’s party controls Congress than if the opposition controls Congress? please answer all.
Discuss and describe the process in which the internal rate of return is used to accept...
Discuss and describe the process in which the internal rate of return is used to accept or reject projects.
Discuss some of the techniques and criteria used by researchers to address the issues of reliability...
Discuss some of the techniques and criteria used by researchers to address the issues of reliability and validity within: (i) Quantitative research methods (ii) Qualitative research methods
What are 3 criteria used by payers in the US to determine if a drug can...
What are 3 criteria used by payers in the US to determine if a drug can be covered under their plans? What are the components of a Health Technology Assessment (HTA)? What are some of the institutes involved in HTA analyses in the United States? Refer to Product X from the previous week’s pricing assignment: What are the typical coverage policies of national payers for the four drugs Vyvanse, Strattera, Amphetamine XR, and Methylphenidate (source: DRG Fingertip Formulary)? Based on...
What are three criteria used by payers in the US to determine if a drug can...
What are three criteria used by payers in the US to determine if a drug can be covered under their plans?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT