Question

The tensile strength of a poly(methyl methacrylate) (PMMA) polymer with a number-average molecular weight of 30,00...

The tensile strength of a poly(methyl methacrylate) (PMMA) polymer with a number-average molecular weight of 30,00 g/mol is found to be 50 MPa, while the tensile strength of a second sample having a number average molecular weight of 50,000 g/mol is 150 MPa.

a) Estimate the tensile strength at a number average molecular weight of 40,000 g/mol.

b) Estimate the tensile strength at a number average molecular weight of 1,000 g/mol.

c) Estimate the tensile strength at a number average molecular weight of 1,000,000 g/mol.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Molecular weight data for some polymer are tabulated. Determine: a) The number-average molecular weight b) The...
Molecular weight data for some polymer are tabulated. Determine: a) The number-average molecular weight b) The weight-average molecular weight c) What is the number-average degree of polymerization for this polymer? d) What is the weight-average degree of polymerization for this polymer? Molecular Weight Range (g/mol) xi wi 8,000-16,000 0.05 0.02 16,000-24,000 0.20 0.10 24,000-32,000 0.20 0.25 32,000-40,000 0.25 0.25 40,000-48,000 0.23 0.20 48,000-56,000 0.07 0.18
The number-average molecular weight of a poly(styrene-butadiene) alternating copolymer is 1346000 g/mol; determine the average number...
The number-average molecular weight of a poly(styrene-butadiene) alternating copolymer is 1346000 g/mol; determine the average number of (a) styrene and (b)butadiene repeat units per molecule.
You must select a high stiffness polymer. How do you expect the tensile modulus of the...
You must select a high stiffness polymer. How do you expect the tensile modulus of the following polymers compare: 1) Atactic PVC having an average molecular weight of 500,000 g/mol 2) Isotactic PVC having an average molecular weight of 500,000 g/mol a) 2 will have a greater tensile modulus than 1 b) 1 will have a greater tensile modulus than 2 c) They exhibit about the same tensile modulus
The glass transition temperature of a linear polymer with number average molecular weight MN =2300 was...
The glass transition temperature of a linear polymer with number average molecular weight MN =2300 was measured at 120°C. This increased to 155°C for the same linear polymer with MN =9000. A branched version of this polymer with MN =7200 was found to have a Tg=105°C. Calculate the average number of branches per molecule in this branched polymer.
Poly(vinyl acetate) of number-average molecular weight of 100,000 is hydrolyzed to poly(vinyl alcohol). Oxidation of the...
Poly(vinyl acetate) of number-average molecular weight of 100,000 is hydrolyzed to poly(vinyl alcohol). Oxidation of the latter with periodic acid to cleave 1,2-diol linkages yield a poly(vinyl alcohol) with Xn = 200. Calculate the percentage of head-to-tail and head-to-head linkages in the poly(vinyl acetate).
The following table lists molecular weight data for a polypropylene material. Compute (a) the number-average molecular...
The following table lists molecular weight data for a polypropylene material. Compute (a) the number-average molecular weight, (b) the weight-average molecular weight, and (c) the degree of polymerization. please show equations and calculations used. thank you Molecular Weight Range (g/mol) xi wi 8,000–16,000 0.05 0.02 16,000–24,000 0.16 0.10 24,000–32,000 0.24 0.20 32,000–40,000 0.28 0.30 40,000–48,000 0.20 0.27 48,000–56,000 0.07 0.11
Everyday investment company Sharesies was launched in February 2017, after conducting research on New Zealanders’ attitudes...
Everyday investment company Sharesies was launched in February 2017, after conducting research on New Zealanders’ attitudes towards investing. Prior to launching the company, the co-founders interviewed over 200 people asking them “If I gave you $50 right now, and you had to do something with it in the next 5 minutes what would you do?” Only 5 out of 200 people chose an option to save or invest the $50. More popular options were bills, online shopping, coffees, vouchers, food,...
Everyday investment company Sharesies was launched in February 2017, after conducting research on New Zealanders’ attitudes...
Everyday investment company Sharesies was launched in February 2017, after conducting research on New Zealanders’ attitudes towards investing. Prior to launching the company, the co-founders interviewed over 200 people asking them “If I gave you $50 right now, and you had to do something with it in the next 5 minutes what would you do?” Only 5 out of 200 people chose an option to save or invest the $50. More popular options were bills, online shopping, coffees, vouchers, food,...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary rivals? How will the acquisition of Reebok by Adidas impact the structure of the athletic shoe industry? Is this likely to be favorable or unfavorable for New Balance? 2- What issues does New Balance management need to address? 3-What recommendations would you make to New Balance Management? What does New Balance need to do to continue to be successful? Should management continue to invest...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT