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JUNIOR LEVEL

Tell me about a time when you faced a challenging problem in polymer science. How did you approach it?

Polymer Scientist Interview Questions
Tell me about a time when you faced a challenging problem in polymer science. How did you approach it?

Sample answer to the question

During my internship at a polymer research lab, I encountered a challenging problem when trying to synthesize a novel polymer. The reaction conditions were not optimized, leading to low yield and poor quality of the polymer. To approach the problem, I firstly conducted a literature review to understand the previous attempts and identified potential modifications to the synthesis protocol. I then performed a series of experiments, systematically varying reaction parameters such as temperature, catalyst concentration, and reaction time. Through careful analysis of the results and collaboration with senior scientists, I was able to identify the optimal conditions that significantly improved the yield and quality of the polymer. This experience taught me the importance of perseverance, adaptability, and critical thinking in overcoming challenges in polymer science.

A more solid answer

During my internship at a polymer research lab, I encountered a challenging problem in synthesizing a novel polymer. The initial attempts resulted in low yield and poor quality. To address this, I conducted an extensive literature review to understand the previous synthesis strategies and identify potential areas for improvement. I collaborated with senior scientists to develop a modified synthesis protocol, incorporating different reaction conditions. I performed multiple experiments, systematically varying parameters like temperature, catalyst concentration, and reaction time. Through meticulous analysis of the results, I identified the optimal conditions that significantly improved the yield and quality of the polymer. This problem-solving process showcased my knowledge of chemical synthesis and polymerization processes, as well as my ability to adapt and collaborate effectively. I learned the importance of data analysis and interpretation, as well as the significance of teamwork in overcoming challenges in polymer science.

Why this is a more solid answer:

The solid answer provides a more detailed account of the candidate's experience in facing a challenging problem in polymer science. It includes specific actions taken, such as conducting a literature review and collaborating with senior scientists, to address the problem. The answer also highlights the candidate's analytical skills and their ability to adapt and collaborate effectively. However, it can still be further improved by providing more specific results and emphasizing the evaluation areas mentioned in the job description.

An exceptional answer

During my internship at a polymer research lab, I encountered a challenging problem in synthesizing a novel polymer. The initial attempts resulted in a yield as low as 5% and a poor quality polymer with undesirable characteristics. To approach the problem, I conducted an extensive literature review, thoroughly studying previous synthesis strategies and understanding the underlying chemistry. Based on my research, I proposed a modified synthesis protocol that involved optimizing reaction parameters such as temperature, solvent composition, and catalyst concentration. I collaborated closely with senior scientists, seeking their guidance and feedback throughout the process. Each experiment was meticulously designed, and the reaction conditions were precisely controlled using state-of-the-art analytical instruments like FTIR, NMR, and GPC. Through the iterative process of experimentation and analysis, I successfully identified the optimal reaction conditions that resulted in a significant improvement in the polymer yield, achieving up to 90%, and the desired properties. This experience not only highlighted my knowledge of chemical synthesis and polymerization processes but also showcased my proficiency in using analytical instruments for data analysis and interpretation. Moreover, it demonstrated my strong collaboration and adaptability skills, as I actively sought input from senior scientists and adjusted my approach based on their expertise. Overall, this challenging problem in polymer science reinforced the importance of thorough research, meticulous experimental design, and effective collaboration in finding innovative solutions.

Why this is an exceptional answer:

The exceptional answer provides a highly detailed account of the candidate's experience in facing a challenging problem in polymer science. It includes specific details about the initial yield and quality issues encountered, as well as the proposed modifications to the synthesis protocol. The answer also emphasizes the candidate's proficiency in using analytical instruments for data analysis and interpretation. Additionally, the answer highlights the candidate's strong collaboration and adaptability skills by showcasing their close collaboration with senior scientists and their ability to adjust their approach based on expertise. The exceptional answer effectively addresses all the evaluation areas mentioned in the job description. However, it can still be further improved by providing more specific examples of the data analysis and interpretation performed and the exact instrumental techniques utilized.

How to prepare for this question

  • Familiarize yourself with different polymerization techniques and their underlying chemistry.
  • Study and stay updated on the latest advancements in polymer science through scientific journals and publications.
  • Practice analyzing and interpreting data obtained from analytical instruments like FTIR, NMR, and GPC.
  • Reflect on teamwork experiences and challenges faced in previous projects to articulate collaboration and adaptability skills.

What interviewers are evaluating

  • Knowledge of chemical synthesis and polymerization processes
  • Problem-solving skills
  • Analytical skills
  • Collaboration and adaptability

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