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Preparation of Bowl‐Like Polymer Particles via Multi‐Step Emulsion Polymerization and Alkali Post‐Treatment
Author(s) -
Deng Wei,
Wang Jishuai,
Wang Manyi,
Kan Chengyou
Publication year - 2010
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200900091
Subject(s) - emulsion polymerization , dispersity , emulsion , polymerization , polymer chemistry , materials science , monomer , chemical engineering , polymer , alkali metal , aqueous solution , chemistry , composite material , organic chemistry , engineering
Summary : Monodisperse P(BA‐MMA‐MAA‐EGDMA)/P(St‐MAA‐DVB) core/shell latex particles were first synthesized by a four‐step emulsion polymerization, and a new kind of latex particles with “bowl‐like” morphology were obtained by post‐treating the resultant core/shell particles under alkali condition. Results indicated that the feeding rates of the monomer mixture and initiator aqueous solution were the key parameters to obtain monodisperse core/shell latex particles in the emulsion polymerization process, and the latex particles with “bowl‐like” morphology could be generated only when the treatment temperature was equal or higher than 70 °C.
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