caa a22 4500 475763564 CHVBK 20180406123558.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1007/s003960050561 doi (NATIONALLICENCE)springer-10.1007/s003960050561 Monodisperse micron-sized cross-linked polystyrene particles. VI. Understanding of nucleated particle formation and particle growth [Elektronische Daten] [J. W. Kim, B. S. Kim, K. D. Suh]  The procedure of nucleated particle formation and particle growth in dispersion polymerization was studied with the intention of understanding the production of monodisperse polystyrene particles cross-linked with urethane acrylate (UA). The time required for the formation of primary particles was determined exactly from the turbidity measurement of the reaction mixture with the polymerization time. It could be found that differing from conventional divinyl cross-linkers, such as divinylbenzene, UA had a boundary concentration where the association and coagulation of preformed nuclei with other oligomers and/or nuclei effectively took place until the primary particle formed. Similarly to linear polystyrene particles, the particle number density of the primary particles cross-linked with UA remained constant to the final particles. This observation verifies the suggestion that the primary particles cross-linked with UA readily absorbed the monomers from the medium during the stage of particle growth. Springer-Verlag Berlin Heidelberg, 2000 Key words Nucleated particle formation nationallicence Urethane acrylate nationallicence Turbidity measurement nationallicence Boundary concentration nationallicence Stage of particle growth nationallicence Kim J. W. Department of Industrial Chemistry College of Engineering Hanyang University Seoul 133-791, Korea e-mail: kdsuh@email.hanyang.ac.kr Tel.: +82-2-22900526 Fax: +82-2-22952102, KR aut Kim B. S. Department of Industrial Chemistry College of Engineering Hanyang University Seoul 133-791, Korea e-mail: kdsuh@email.hanyang.ac.kr Tel.: +82-2-22900526 Fax: +82-2-22952102, KR aut Suh K. D. Department of Industrial Chemistry College of Engineering Hanyang University Seoul 133-791, Korea e-mail: kdsuh@email.hanyang.ac.kr Tel.: +82-2-22900526 Fax: +82-2-22952102, KR aut https://doi.org/10.1007/s003960050561 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960050561 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim J. W. Department of Industrial Chemistry College of Engineering Hanyang University Seoul 133-791, Korea e-mail: kdsuh@email.hanyang.ac.kr Tel.: +82-2-22900526 Fax: +82-2-22952102, KR aut NATIONALLICENCE 700 1- Kim B. S. Department of Industrial Chemistry College of Engineering Hanyang University Seoul 133-791, Korea e-mail: kdsuh@email.hanyang.ac.kr Tel.: +82-2-22900526 Fax: +82-2-22952102, KR aut NATIONALLICENCE 700 1- Suh K. D. Department of Industrial Chemistry College of Engineering Hanyang University Seoul 133-791, Korea e-mail: kdsuh@email.hanyang.ac.kr Tel.: +82-2-22900526 Fax: +82-2-22952102, KR aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer