Development of a systematic coarse-grained model for poly(ε-caprolactone) in melt

Area of Science:

• Polymer Science
• Computational Materials Science
• Sustainable Materials

Background:

• Addresses the increasing demand for sustainable materials in various industries.
• Focuses on modeling biodegradable polymers like poly(ε-caprolactone) (PCL).
• Highlights the need for adaptable computational models for diverse polymer applications.

Purpose of the Study:

• To introduce a systematic coarse-graining approach for modeling PCL in its melt state.
• To develop a simple and adaptable method for creating computational models of biodegradable polymers.
• To enable the study of PCL with a wide range of molecular weights and compositions relevant to industry.

Main Methods:

• Employed atomistic simulations using the L-OPLS force field, adapted from OPLS-AA.
• Validated atomistic simulation data against existing literature and theoretical predictions.
• Developed a coarse-grained model based on validated atomistic configurations.

Main Results:

• Accurately reproduced key structural and dynamic properties of PCL at both atomistic and coarse-grained levels.
• Demonstrated the successful transferability of properties across different simulation resolutions.
• Validated the coarse-grained model's efficacy in capturing essential material characteristics.

Conclusions:

• The presented methodology facilitates computational studies for optimizing PCL-based material properties.
• Potential to reduce the environmental and economic impact of developing new sustainable materials.
• Offers a pathway for more efficient design and application of biodegradable polymers.