Nobody downloaded yet

Chain-growth polymerization reactions - Lab Report Example

Comments (0) Cite this document
Summary
Chain growth polymerization corresponds to a polymerization process or technique in which unsaturated monomer molecules add to the active site of a growing polymer chain. These occurs one monomer at a time. This process has distinct characteristics because of the limited number…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER95.9% of users find it useful
Chain-growth polymerization reactions
Read TextPreview

Extract of sample
"Chain-growth polymerization reactions"

Download file to see previous pages Chain growth polymerization occurs in distinctive steps. The first step involves chain initiation in which an initiator commences the chemical process. The next step involves chain elongation followed by chain transfer. Chain transfer concludes the chain after which the active site is moved to the new chain. Polymers, solvents and monomers can facilitate this. This processes leads to an increase in the branching of the ensuing polymer. Chain termination occurs as the last step through disproportion or combination. Termination in fundamental polymerization occurs when free radicals combine.
The active center for a chain growth polymerization can assume the state of a free radical in the corresponding polymerization. Radical polymerization in this case involves the successive addition of radical building blocks. This can occur through several mechanisms, which involve different initiator molecules (Wünsch 131). After the generation process, the initiating radical adds monomer units, which leads to the growth of the polymer.
Chain growth polymerization such as radical polymerization reactions leads to the generation of different material composites and polymers. Radical polymerization involves different initiators such as thermal decomposition in which the bond is homolytically cleaved leading to the production of two radicals. Photolysis involves the use of radiation in cleaving bonds homolytically. The initiation step is followed by the propagation in which the polymer increases its chain length. The termination process follows unless the reaction has contaminants, which can contribute to the addition of monomers (Richardson, and Erik 92). Chain transfer occurs as the last step, which leads to the destruction of a radical and construction of another radical. However, the new radical usually does not have propagation capabilities.
Chain growth polymerization leads to the formation of an elevated molecular weight polymer at low conversion. In this case, the ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Chain-growth polymerization reactions Lab Report”, n.d.)
Retrieved from https://studentshare.org/chemistry/1614994-chain-growth-polymerization-reactions
(Chain-Growth Polymerization Reactions Lab Report)
https://studentshare.org/chemistry/1614994-chain-growth-polymerization-reactions.
“Chain-Growth Polymerization Reactions Lab Report”, n.d. https://studentshare.org/chemistry/1614994-chain-growth-polymerization-reactions.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Hamlet - Final reactions
...? Hamlet is such a wonderful character because of his complex and conflicted nature. Calling him simply one thing, or trying to reduce him to a specific type is a very difficult thing to do. The best that can be done to minimize Hamlet into a simple category is to seek for a common thread that combines his many natures. In contemplating his interactions with Ophelia, Horatio, Gertrude, Polonius and Claudius it becomes apparent that Hamlet is truly little more than a spoiled royal baby that is in need of rationality and self control. He is appears to be the possessor of a multitude of emotional gifts, but the master of none. One word that I would use to describe Hamlet is impetuous. Hamlet seems to react to almost every situation... Hamlet is...
3 Pages(750 words)Essay
Polymerization
...POLYMERIZATION and Question one a) Derivation of the equation of free radical polymerization -d[M]/dt = kp[M] (Kdf[I] / Kt)1/2 Polymerization kinetics Initiator fragments I2. 2I Rf = 2 fkd [I2] Chain initiation I + M M RI = KI [I] [M] Chain propagation MI + M M i+1 RP = KP [M] [M] Chain termination Mi + M i Inactive products RF = 2Kt [M]2 Overall rate of polymerization will be -d [M]/dt = ki [I] [M] + KP [M] [M] -d [M]/ dt = kp [M] [M] + [m]/dt = ki [I] [M] -d [M]/dt = 2Kt [M]2 D [M]/dt = ki [M] [I] – 2Kt [M]2 Ki [i] [m] is nearly or equal to 2Kt [M]2 Therefore...
10 Pages(2500 words)Coursework
Reactions to Industrial Domination
...Reactions to Industrial Domination Introduction Progressive reaction to industrial domination had a lot to do with the reforms needed to improve the way of life such as social injustices, poverty and social inequalities I believe that the above statement is true in relation to the food industry. Industrial domination exists in a market situation in which a product does not have a close substitute; is being produced and sold by a single seller and this is the case of a monopoly, while oligopoly is a market situation where there are few sellers and many buyers of similar but differentiated products. OPEC provides a good example of international oligopoly. (Todaro, M. pp. 540-541) Impact of industrial...
3 Pages(750 words)Essay
Adverse Drug Reactions
...(hypersensitivity reaction), benoxaprofen (hepatotoxicity and neurotoxicity), fenclofenax (epidermal necrolysis), ibufenac (hepatotoxicity), the antidiabetic phenformin (lactic acidosis), and the antibiotic temafloxacin (hepatotoxicity, haemolysis). Genetic Screening Methods A number of methods are in development for the assessment of genetic profiles, which may help in determining the presence of pharmacogenomically relevant polymorphisms and predict their effect on drug therapy (Grant, 2005; Lee, 2005). DNA sequencing: this is used for qualitative characterization of mutations. Hybridization based methods (target amplification or signal amplification): this employs the polymerase chain...
18 Pages(4500 words)Essay
Reactions papers
...Reaction papers History 2007 Letter 5. Basic fundamentals about Islam. The letter by the Ottoman sultan Selim to his enemy Ismail I contains a number of references to the essential Muslim beliefs. Moslems worship Allah, the God, who is the only god over the people. They deny the trinity offered by Christianity as the distortion of the divine truth. It is believed that Muhammad was the last prophet, whose task was to tell the truth about God to people. The words of Muhammad were put down in a book called Quran, which is written in ancient Arabic, while the translations are treated as interpretations of Quran. This holy book teaches that only true believers will be rescued on the day of the Last Judgment, while the rest...
4 Pages(1000 words)Essay
Ionic Reactions
...November 04, Experiment # Ionic reactions Purpose: The purpose of the experiment is to get acquainted with the ion exchange reactions then move on to learning how to write balanced chemical equations, highlighting both spectator ions and ions taking part in the reaction. Before finally, learning net chemical equations and explain their meaning from the positions of the theory of electrolytic dissociation. STEP SUBSTANCE REAGENT RESULT INFERENCE 1 Co(NO3)2 cobalt (II) nitrate Na3PO4 Red precipitate Co3(PO4)2 is insoluble in water 2 NaI NA CoI2 is soluble in water 3 Na2SO4 NA CoSO4 is soluble in water 4 NaCl NA CoCl2 is soluble in water 5 NaHCO3 NA Co(HCO3)2 is soluble in...
3 Pages(750 words)Lab Report
Reactions and Reasons
...Reactions and Reasons This piece is quite impressive due to the number of feelings and associations it triggers by its sounding and instrumentation. It is visibly divided into 3 sections, which structure perceptions regarding music. The first and the third parts dwell on the same idea; however, they represent it differently. In this way these two sections are not perceived as identical. The second section of the piece is aimed at opposing the fist and the last sections. A number of binary oppositions characterize the differences between the second and two other sections of the piece. All of them create unforgettable atmosphere of the piece and help to reveal the meaning each part displays. From the very beginning the...
4 Pages(1000 words)Essay
Reactions
...unsteady change, increasing between 2009 and 2011 and decreasing steadily between 2012 and 2013. Both the shareholders equity and borrowings have been at acceptable levels. This company is economically stable and growing upwards. FREEDOM COMMUNICATION, INC This is the company that has been advocating for standards of media communication that observes certain values and principles of integrity, liberty and voluntary press. The financial muscles of this Santa Ana based communication company have grown over the years. It has seen a steady growth in terms of the profits accrued over the period of five years from 2009 to 2013. This has seen the marginal profit go to figures above 12 million US dollars. Its long term...
2 Pages(500 words)Assignment
Situational reactions
...Situational reactions Situational reactions Scenario A In this scenario, the situation seems quite tricky. It is clear that in the police force that the commander’s command is final and should be adhered to no matter how logical or illogical it is. The fact hence could make me stage that scenario to act as the commander’s recommendation. However, I would also talk to the commander to convince him or her that the scenario could have been solved in another way. It is clear that the human is to error. I would take the responsibility of convincing the human rights officials as well as other government stakeholders that the scenario took place by mistake, but it was not planned to be so. Since they are human,...
2 Pages(500 words)Coursework
Exploring polymerization reactions
...Exploring Polymerization Reactions Calculate the Mn, Mw and PDI of a polymer sample containing 5 chains with molecular weight of 5000g/mol, 2 chains with molecular weight of 50000g/mol and 1 chain with molecular weight of 500000 Mn = (5X5000) + (2X50000) + (1X500000) = 625000 = 78125 g (5+2+1) 8 Mw = (5X50002) + (2X500002) + (1X5000002) =326560 g 10 X 78125 PDI = Mw =326560 = 4.178 Mn 78125 2. Proteins are made by reaction of amino acids. Do you think this is a step growth or a...
2 Pages(500 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Lab Report on topic Chain-growth polymerization reactions for FREE!
logo footer
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us