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- 2. Why does a transparent polymer turn opaque in the necked region when tested in tension.From the practical standpoint, is it better to use a "good" solvent or a "poor" solvent when measuring polymer molecular weight? Explain.1. What are the principal natural processes that affect the petrophysical properties of sedimentary rocks? 2. As shown in Table 1.1, the total bulk chemical analysis of rock samples is clearly different from the surface analysis. What effect does this have on the rock properties?
- . Describe vacuum forming/thermoforming processes. What are typical thermoformed plastic products? What processing method would you use to make large, hollow polyethylene playground items?What is the chemists’ solution to non-biodegrable plastics?A polymer synthesis method wherein a bulk material is subjected to fabrication and printing of desired nano shapes by removing a portion of a material. a. nanolithography b. Sol-gel c. Pyrolysis d. sputtering