This data set contains the simulation coordinates and figures data belonging to the publication Javan Nikkhah, Sousa & Sammalkorpi, Maria. Single core and multicore aggregates from a polymer mixture: A Dissipative Particle Dynamics Study. Journal of Colloid and Interface Science 635, 231 - 241 (2023). DOI: https://doi.org/10.1016/j.jcis.2022.12.119 . Please cite the above publication when using this data set! This work was supported by Kemira Oyj, Business Finland Co-Innovation grant No. 3767/31/2019 (M.S.) and the Academy of Finland through its Centres of Excellence Programme (2022-2029, LIBER) under project no. 346111 (M.S.). We are grateful for the support by the FinnCERES Materials Bioeconomy Ecosystem and use of the Bioeconomy Infrastructure at Aalto. Computational resources by CSC IT Centre for Science, Finland, and RAMI – RawMatTERS Finland Infrastructure are also gratefully acknowledged.

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