Sample interview questions: How do you approach the design and synthesis of polymers with specific properties or functionalities?
Sample answer:
Approaching Polymer Design and Synthesis for Specific Properties/Functionalities:
1. Define Target Properties and Functionalities:
* Clearly identify the desired characteristics, such as mechanical strength, electrical conductivity, biocompatibility, or optical transparency.
* Quantify these properties to establish specific design goals.
2. Research Literature and Explore Existing Polymers:
* Review scientific literature and industry reports to gather information on polymer structures, properties, and synthesis routes.
* Identify similar polymers with analogous functionalities and their structure-property relationships.
3. Select Monomer Building Blocks:
* Choose monomers that possess the necessary chemical functionalities to achieve target properties.
* Consider factors such as molecular weight, polarity, and reactivity to tailor polymer characteristics.
4. Design Polymer Architecture:
* Determine the desired polymer architecture, such as linear, branched, or crosslinked structures.
* Select appropriate polymerization techniques to synthesize polymers with specific topologies and molecular weights.
5. Optimize Polymerization Conditions:
* Adjust polymerization parameters (temperature, pressure, catalysts, initiators) to control polymer microstructure, including molecular weight distribution, branching, and end-group functionality.
* Use analytical techniques to characterize polymer properties and ensure they meet design specifications.
6. Incorporate … Read full answer