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Solve these questions using Introduction to Membrane Science and Technology by Heinrich Strathmann"

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Chapter 3 1. Describe the difference between a symmetric, an asymmetric, and a composite membrane and indicate membrane processes where they are used. 2. Which techniques are used for the production of porous membranes from (a) polymers, (b) ceramics, or (2) glass? 3. For the preparation of porous polymer membranes the so-called phase inversion process is widely used today. What are the required properties of a polymer suitable as basic material for the preparation of porous membranes by the phase inversion process? 4. Which chemical and mechanical properties of polymers are to be considered if polymers are used as basic materials for the preparation of membranes