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Detailed Structural Analysis of the Hyperbranched Polymers Formed in Self‐Condensing Vinyl Polymerization
Author(s) -
Tobita Hidetaka
Publication year - 2019
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/mats.201800061
Subject(s) - radius of gyration , continuous stirred tank reactor , polymer chemistry , polymerization , polymer , gyration , residence time (fluid dynamics) , monomer , materials science , chemical engineering , chemistry , composite material , mathematics , geometry , geotechnical engineering , engineering
Monte Carlo simulation is applied to investigate the effect of reactor types on the formed hyperbranched architecture. When a continuous stirred‐tank reactor (CSTR) is used for the synthesis, the number of units incorporated into the largest cluster of dendritic units inside the hyperbranched polymer increases with molecular weight, while it does not increase in batch polymerization. The largest dendritic cluster formed in a CSTR consists of the monomeric units whose average residence time is large, while the average residence time of the singly connected peripheral units is small. The maximum span length as well as the mean‐square radius of gyration of the high molecular weight polymer is much smaller for the polymers synthesized in a CSTR, compared with batch polymerization. A universal relationship between the mean‐square radius of gyration and the maximum span length is found, which is valid for both batch and CSTR.