Hi, I recommend ASPEN Polymer Plus, on the other hand I found articles that might be useful

Article Modeling and Simulations of Polymers: A Roadmap

Article Design, Simulation and Optimization of Polymerization Proces...

Thnak you Farrokh Valizadeh for your prompt reply and excellent resources.

Dear all, synthetic polymers lack the consistency and depend on the manufacturer features. For this, you have to take a well know typical polymer(s) with known data characteristics and apply your study. It will be wise enough if you can choose a polymer synthesized by living/controlled (radical) polymerization techniques, they have such regular structures such as MW, MWD, and chain architecture, as compared to proteins. My Regards

Thank you Abdelkader BOUAZIZ . Yes, you raise a very good point. I have a plan to study polymer whose MW and polydispersity are well known. Indeed, our group is preparing such polymers using RAFT and ATRP methods. Thanks again for your suggestion.

https://www.researchgate.net/publication/330597423_Modeling_and_Simulations_of_Polymers_A_Roadmap