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Formation of Nonspherical Particles with Uneven Surface in Emulsion Copolymerization of Styrene and Methacrylic Acid with Nonionic Emulsifier
Author(s) -
Haipu Li,
Suzuki Toyoko,
Okubo Masayoshi
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.201050205
Subject(s) - copolymer , potassium persulfate , styrene , methacrylic acid , emulsion polymerization , emulsion , polymer chemistry , monomer , materials science , coagulation , chemical engineering , phase (matter) , chemistry , polymer , organic chemistry , composite material , psychology , psychiatry , engineering
Summary: Emulsion copolymerization of styrene and methacrylic acid with nonionic emulsifier and potassium persulfate as initiator gave nonspherical copolymer particles having uneven surface. The formation was based on the coagulation of byproduct nano‐sized (ca. 35 nm) particles, which were formed throughout the copolymerization until monomer phase disappeared, onto main submicron‐sized (234 ∼ 445 nm) particles.