Sample Midterm Questions

Sample Midterm Questions - Sample Midterm Questions: 1. a....

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Sample Midterm Questions: 1.   a. Define Tg and Tm b. Which polymer will degrade faster, poly(D-L  lactide) or poly(L-lactide)?  Explaim  why? c. You thnk that a new form of composite material that you have developed will  work very well as a bone replacement following implantation in the body.  You  are planning to use it in the  face. i. List four properties of the material that you think are important for its  success as a bone substitute? ii. Suppose the sample you are testing is cylindrical with 2 cm diameter and  is 4 cm long.  You put a 70 kg load (mass) and see that the sample  elongates 30%.  Calculate the young’s modulus for the material. 2. a. You have been provided with a polymer sample with the following distribution of  polymer molecules: 300 molecules of molar mass 3000 200 molecules of molar mass 3500 150 molecules of molar mass 5000
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This note was uploaded on 04/07/2008 for the course BME 314 taught by Professor Frey during the Spring '08 term at University of Texas at Austin.

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Sample Midterm Questions - Sample Midterm Questions: 1. a....

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