(a) Compute the repeat unit molecular weight of polyethylene. (b) Compute the number-average molecular weight for a polyethylene for which the degree of polymerization is 22000

Q: A hydrocarbon (Alkene) is used as a monomer to prepare a chain-growth polymer with molecular weight…

A: Polymer are of two type  I) Naturally Occurring II) Synthetic Organic Polymer The above polymer of…

Q: Poly(butylene terephthalate) is a hydrophobic plastic material widely used in automotive ignition…

A: Poly (butylene terephthalate) is mainly prepared from butan-1,4-diol and terephthalic acid. It is a…

Q: (i) Define the criteria for condensation polymerisation to occur. (ii) Give one example of…

A: Condensation polymer is a kind of polymer formed by condensation reaction, where molecules join…

Q: Illustrate, with chemical formulae, the influence of the size of the side groups of a polymer…

A: Polymer is a large molecule which is made up of the small repeating units. These molecules have the…

Q: Calculate the number-average molecular weight (Mn) and the weight-average molecular weight (Mw) for…

A: Mn= ∑1iNiMi∑1iNi Mw =∑1iNiMi2∑1iNiMi

Q: Outline the experimental method used to prepare Hydrogels/ Cryogels by Free Radical Polymerization…

A: Given information, Preparation of Hydrogels/Cryogels by free radical polymerization technique in the…

Q: Many plastic bags are made of polyethylene. Despite only containing dispersion forces, the material…

A:

Q: rive an expression for the rate of polymerization of stoichiometric amounts of adipic acid and

A:

Q: iii. Cationic Polymerization! H+ Initiation propagation Reason for monomer choice:

A: The given monomers would likely undergo radical, anionic, or cationic addition polymerisation has to…

Q: Write the chemical structure of the alternating copolymer which is synthesized by the…

A: An alternating copolymer is a copolymer comprising two species of monomeric units distributed in…

Q: On the same axes, sketch the extent of reaction (p) vs time for (i) uncatalyzed and (ii) catalyzed…

A:

Q: What type of ionic addition polymerization process would vinyl acetate be expected to undergo?…

A: Given

Q: State whether it is possible to determine whether one polymer is more likely to crystallize than the…

A: A linear polymer is a macromolecule in which each repeating unit is linked only to two others and…

Q: 1. Draw the structure formula of its monomer. 2. Write chemical equations that describe radical…

A: Polyvinyl acetate is also referred to as PVAc, PVA, and poly(ethenyl ethanoate). However, it is…

Q: Which of the following polymers would not be capable of conducting electricity? Assume appropriate…

A: The conductive polymers are also known as intrinsically conducting polymers. These are organic…

Q: Calculate the molecular weight of PMMA for which the degree of polymerization, n, is 5112. Express…

A: Degree of polymerization is is used to represent the total numbers of repeating units of monomer…

Q: Outline some methods for obtaining ultra-high orientation in polymers (e.g. Kevlar).

A: Роlymers аre mаteriаls соmроsed оf lоng mоleсulаr сhаins thаt аre well-ассeрted fоr а wide vаriety…

Q: molecular structure to that of polyester

A:

Q: what is floor temperature in thermodynamics of polymerization with the explaination of floor…

A: Floor temperature is the critical temperature in which the temperature reaches a maximum or minimum…

Q: monomers

A:

Q: Classify the following reaction as "A" for addition polymerization or "C" for condensation…

A: (a) The given reaction is,

Q: Describe the mechanism by which stereoregular polyolefins are formed in heterogeneous coordination…

A:

Q: How might you determine experimentally whether a particular polymerization is propagating by a…

A: Given polymerization process, Step-growth or chain-growth polymerization. In step-growth…

Q: QII: Distinguish between the following reactive intermediates in chain- growth polymerizations: 1.…

A: 1. Answer - Radicals - Radical Polymerization is a polymerizing approach by which successive…

Q: Proteins are naturally occurring polymers formed by condensationreactions of amino acids, which have…

A: a) The proteins are framed by the buildup polymerization of at least 50 amino acids.  The overall…

Q: What is the fraction of monomers (p) that have been used in a stepwise polymerisation reaction if…

A:

Q: Chain branching is not as common with anionic polymerization as it is with free-radical…

A: The carbon-carbon double bond can be polymerized by free radical or ionic method that is cationic…

Q: Macromolecules can also be formed from cyclic monomers such as cyclic hydrocarbons, ethers, esters,…

A: Polymerization could be a method through that an outsized range of compound…

Q: For a general chain-growth polymerization, we might expect that polymer chain length would be.

A: Chain growth polymerisation is a process in which the high molecular weight polymer is formed early…

Q: Briefly discuss the effect of thermodynamic on polymerization.

A: Polymerization is a process in which many monomers join together to form a large macromolecule.…

Q: Which method of ionic polymerization—cationic or anionic—is preferred for attached monomer? Explain…

A: Generally cationic polymerization takes place only with alkene monomers that contain electron…

Q: The properties of polymer materials are not only influenced by the nature of the matrix polymers but…

A: Polymers are the materials which consists repetitive units of a compound. The repetitive unit is…

Q: Consider each of the following monomers and predict if it would likely undergo radical, anionic, or…

A: Given that : We have to identify which of the following monomer to use alongwith the electron…

Q: Choose the casood Statement for given below statement what happens to from the polymer chain in as a…

A:

Q: What effect does the presence of an α-Methyl group in a polymer chain have on the glass transition…

A: The effect of alpha Methyl group on the glass transition temperature (Tg) in a polymer chain is as…

Q: (a) Compute the repeat unit molecular weight of polybutene unit chemical formula =( C8H16) (b)…

A: Using formula of degree of polymer. n= Mn/Mo

Q: (d) A sample of head-to-tail polypropylene was found to have an average molar mass of 33,000.…

A: We have to predict the average degree of polymerization.

Q: . Discuss the possibility of cyclization in the polymerization of a. H2N-(CH2)m-CO2H b. HO-(CH2)2-OH…

A: Solution Some surprising results were determined within the part transfer of catalyzed (PTC) (two…

Q: A hydrocarbon (Alkene) is used as a monomer to prepare a chain-growth polymer with molecular weight…

A:

Q: w

A: Polymerization reaction can occur if there are atleast two fuctional group present in the monomer…

Q: Teflon can be made from tetrafluoroethylene by means of a free radical polymerization. In the…

A: The product of propagation step in free radical polymerization of tetrafluoroethylene to form the…

Q: The molecular formula of n-decane is CH31CH228CH3. Decaneis not considered a polymer, whereas…

A: Polymers are long C chains with high mass.

Q: Consider each of the following monomers and predict if it would likely undergo radical, anionic, or…

A: Cationic pathway will be followed if mechanism involves formation of stable carbocation. Carbocation…

Q: Explain how chain branching, cross-linking, stereochemistry (isotactic, syndiotactic, or atactic),…

A: Polymers are the compound which formed when a large number of monomers are combined with each other…

Polymerization Kinetics

Polymerization is a chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that diverge in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes. Polymerization is generally classified into step-growth and chain polymerization. Polymers are categorized into linear polymer and cross-linked polymers that are produced either by condensation or additional polymerization.