PLEASE ANSWER PARTS D,E,F Polyethylene is made up of the following fractional distribution.Molecular Weight (Da)5,00010,0001,000,000Number of chairs1000Fraction1210003a. Calculate the weight average molecular weight (MW) of the polymer.b. Calculate the number average MW of the polymer.c. Calculate the poly dispersityd. Which average molecular weight determination did the fraction 3 most significantly affectand Why?e. What would be the volume of a sample (100g) if the density of the polymer is 0.95 g/cc?f. What is the best way of making this polymer: free radical, condensation, etc?It should be number of chains not number of chairs

We have to give the answer of the given questions. D. We have to tell which molecular weight…

d. Which average molecular weight determination did the fraction 3 most significantly affect and Why? e. What would be the volume of a sample (100g) if the density of the polymer is 0.95 g/cc? f. What is the best way of making this polymer: free radical, condensation, etc? It should be number of chains not number of chairs

d. Which average molecular weight determination did the fraction 3 most significantly affect and Why? e. What would be the volume of a sample (100g) if the density of the polymer is 0.95 g/cc? f. What is the best way of making this polymer: free radical, condensation, etc? It should be number of chains not number of chairs

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter22: Organic Chemistry And Biochemistry

Section: Chapter Questions

Problem 9QE

See similar textbooks

Similar questions

Polyethylene is made up of the following fractional distribution. Number of chairs Molecular Weight (Da) 5,000 10,000 1,000,000 Fraction 1 1000 1000 3 a. Calculate the weight average molecular weight (Mw) of the polymer. b. Calculate the number average MW of the polymer. c. Calculate the poly dispersity d. Which average molecular weight determination did the fraction 3 most significantly affect and Why? e. What would be the volume of a sample (100g) if the density of the polymer is 0.95 g/cc? f. What is the best way of making this polymer: free radical, condensation, etc?
Consider three hypotheticals monodisperse polystyrene, with M=10,000, M= 100,000, and M=1,000,000. For each, calculate weight average molecular weight (Mw) and number average molecular weight (Mn) Ref: Billmeyer, F.W. textbook of polymer science 3rd ed after adding the following to 100 parts by weight of the polymer with M = 100,000 1) 20 parts by weight of the polymer with M =10,000
High-density polyethylene (HDPE) fibre is used as liners for surgical gloves.Although the liner has a very high resistance to being cut, the polymer allows a surgeon to maintain a delicate sense of touch. The HDPE liner is usually rigid andnot flexible.a. Suggest a reason why low-density polyethylene, LDPE cannot be used.b. Give a molecular level reason why HDPE is successful in this application.
5.2 A batch of poly(butylene terephthalate), PBT, is made by reacting butylene glycol (also known as 1,4-butane diol) with terephthalic acid, see example 2.4C. A total of 5 moles of polymer is made. The mixture contains 1.06 moles with a molecular weight of 207,900, 0.65 moles with a molecular weight of 210,100, 0.54 moles with a molecular weight of 211,420, 1.13 moles with a molecular weight of 212,080, 0.77 moles with a molecular weight of 215,160, and 0.85 moles with a molecular weight of 480,920. (Note: the above means that there are 1.06 moles of chains that have the same degree of polymerization to give the MW of 207,900, and similar for each of the other entries)
1. Draw 2D chemical representations of atactic, syndiotactic, and isotactic polystyrene. 2. Calculate molecular weights, Mn and Mw, of the following polymer solution. What is the polydispersity index? M1. 3000 g/mol 3000 chains M2. 3,000,000 g/mol 10 chains M3. 50,000 g/mol 200 chains 3. Draw and label the generalized polymer structures for a polyurethane, polyanhydride, polyester, polyamide and polyether. 4. How is crystallinity difference between metals, ceramics, and polymers? 5. For my medical device, I wish to create a material that is soft and will retain a lot of water. But I also want it to be rigid and can withstand up to 50lbs of force. What material should I use? 30°F Cle DO
This polymer is composed of 2 monomer units: an acid chloride and an amine. In the box below, draw the structure of both monomers. flands (CH₂)6- -85 I.. H ChemDoodle • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate structures with + signs from the drop-down menu. -CH₂ On Sn [F < ZI 22 S
Below.molecclar weight dota for a tabutated PolyproPhlene metevial are . com Pute 1) The number average molecklar weight 22The weight average molecular weight. 3) The degree of Polymerization. Moleculor weiut Ramm g\mol 0.07 16r000 0m 24r000 2,000 .16 .24 oe0lenーeeCrs 0+20 30 そ 1000000127
Chemistry ⒸF|C2022W/CHEN154 WS 0 Q Sch ш ш модними AB HO. Student ID: 12. Good question. Which of the following monomers (A or B) produces a polymer with the highest melting point? Briefly explain your reasoning. Assume the molecular weight of the resulting polymer is the same. OH H₂N. y new H. Inv OH antep CNC 91 © bove m
bns botanisz s neswted sons stiib erit to noiagiza29b 139100 6 zigniwollot art to ribirtwe The monomer used to make the polymer illustrated is: a. CH₂=CHCH₂CH₂CEN duloznim stew ylle b. CH3CH₂CH=CHC=N fcH 620 d. C. CH3CH=CHCH₂C=Nsuis tud sidemmell ois anodispo CH3CH₂CH₂CH₂C=Nbrod elgislum nistnos ton ob anodie20byrbs e. None of the above abnod plgillum nistno ob en 153 When the aromatic ring is named as a side chain or noche. Shodisporbyd beis 16200 H3C H3C H3C 915 21100) CH₂ CH₂ aidulos 1915W CH CH CH N N CH₂ CH CH 19₁ N
1 2 3 6 Polymer Sample # MW of 4 5 7 8 10 204 216 240 243 280 282 291 320 325 480 sample Compute (a) the number-average molecular weight, (b) the weight-average molecular weight, and (c) the degree of polymerization if the repeating unit have a molecular weight of 28g/mol (d) draw a polymer with 5 repeating units, based your monomer on the molecular weight Hint: Sort the weight ranges by 40.
A sample of polystyrene is composed of a series of fractions of different sized molecules. a)Calculate the number average and weight average molecular weights of this sample as well as the PDI. Comment on the PDI – is it polydispersed? b)How would adding styrene oligomer change the average molecular weights? Added amount is 5 wt. % of polymer mass and M = 1,000 g/mol. c)What would be the potential polymerisation pathways you may follow to polymerise this polymer d)What would happen if you fractionate the polymer to remove all fractions above 20,000 Da and 50% of any fraction above 15,000 Da? Recalculate the Mn, Mw, and PDI for this new system. e)What type of polymeric materials does this distribution of Mw for the new system corresponds to? Would it be likely solid or liquid at room temperature and atmospheric pressure?
0ہ:۱۰ ص ZAIN IQ I1. A docs.google.com the decrease in sensitivity with increasing polymer chain length low accurcay for low molecular weight taking quite long time to reach equilibrium a pure sample is needed 5 نقاط A hydrocarbon (Alkene) is used as a monomer to prepare a chain-growth polymer with molecular weight of 42000 g/ gmole. If the degree of polymerization is 1000, the polymer :type is Polypropylene Polystyrene Low density polyethylene High density polyethylene L6 4 The transfer constant to the solvent for the polymerization of styrene in benzene at 100°C is 0.0000184 .