Stiffness(Gpa) |
Tensile strength(Mpa) |
Use Temperature (oF) |
|
polythene |
1.5 |
15 |
356 |
epoxy |
3.81 |
69 |
215 |
Polyvinyl chloride |
7.00 |
52 |
140 |
polystyrene |
3.0 |
55 |
464 |
Polyvinylidene chloride |
0.60 |
24.1 |
392 |
Stiffness order:
Polythene, polystyrene, epoxy, polystyrene, Polyvinyl chloride
Tensile Strength order:
Polythene, Polyvinylidene chloride, Polyvinyl chloride, polystyrene, epoxy
Used Temperature order:
Polyvinyl chloride, epoxy, polythene, Polyvinylidene chloride, polystyrene
5) Rank the following polymers in terms of the listed properties from 1 (lowest value) to...
5) Rank the following polymers in terms of the listed properties from 1 (lowest value) to 5 (highest value). Explain the results. 19 -C-C- (Highly Cross- Liaked Structure) -C-C- -C-C- Polyethylene Epoxy Polyvinyl Chloride Polystyrene Chloride Tensile Strength Tensile Use Temperature Stiffness Polyethylene Epoxy Polyvinyl Chloride Polystyrene Polyvinylidene Chloride
3 Match the following polymer with the common product in which it is used (see intro for help). 1. polystyrene 2. nylon 3. polypropylene 4. low density polyethylene 5. polycarbonate a. Plastic Bags b. Water Pipes c. Cookware d. Egg containers e. Milk cartons 6. polyethylene f. Carpet and Knitted fabrics 7. polyvinylchloride 9. Automobile bumpers 8. polytetrafluoroethylene h. Rope 4. Shown below are monomers for common polymers that get made. Draw two repeating units of the polymer structure for...
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or linear chains? d. What is fivg, the average number...
please only do H-M. i have done everything else.
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or...
help!!
(CH3),CBr + 1 → (CH3),CI + Br the following data were collected: [(CH3)3Br] (M) Time (s) 0.600 0 0.424 10.0 0.300 20.0 0.212 30.0 0.150 40.0 Determine the rate law for this reaction and calculate the rate constant. (20 points) E (V) Thermodynamics: AGº - AH-TAS Nernst Equation: 8 = 8°-(RT/nF)InQ AGⓇ--RTINK At 25°C: 8-6° -0.0591/n)logQ AG RT K-e AG° = -nF8° Units/Constants: Volt: 1 V-1 JC Faraday: 1 F -96,485 C/mole Ea/RT Arrhenius Equation: k = Ae R-8.314...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
chapter 12 series B exercises
PLEASE
andise on account from Sillas avice No 12,53,100, terms 1/10, a Company 5 Returned merchandive purchased from Tang's Toys, receiving a credit wmemo on the amount owed, $500 s Parchased merchandise on account from Daisy's Dolls, Invoice No. 139, $1,900, terms 2/10, /30. 11 Issued Check No.415 t0 Tang's Toys for merchandise parchased on account, less return of luly 5 and less 2% dincount 13 Issoed Check No. 416 to Sillas & Company for...