Effects of dispersion stabilizer and reaction solvent on forming monodisperse polystyrene microspheres by dispersion polymerization

Takuro Nakashima; Tsutomu Ono

doi:10.1007/s00396-008-1924-9

Effects of dispersion stabilizer and reaction solvent on forming monodisperse polystyrene microspheres by dispersion polymerization

Takuro Nakashima, Tsutomu Ono

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We used poly(aspartic acid) (PAsp) synthesized by ion exchange with sodium polyaspartate (PAspNa) as a dispersion stabilizer. PAsp improved the dispersion stability and the solubility in the medium for dispersion polymerization. The effects of the stabilizer hydrophobicity on particle formation, conversion, particle diameter, and its distribution of polystyrene microspheres were investigated by using both biodegradable polymers as a dispersion stabilizer. According to these results, we concluded that the polymerization rate of the styrene with PAsp was higher than that of styrene with PAspNa. That is why, smaller and more monodisperse microspheres were prepared with PAsp, compared to those with PAspNa.

Original language	English
Pages (from-to)	1587-1592
Number of pages	6
Journal	Colloid and Polymer Science
Volume	286
Issue number	14-15
DOIs	https://doi.org/10.1007/s00396-008-1924-9
Publication status	Published - Oct 1 2008

Keywords

Biodegradable polymer
Dispersion polymerization
Monodisperse particle
Poly(aspartic acid)
Polystyrene

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Polymers and Plastics
Colloid and Surface Chemistry
Materials Chemistry

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10.1007/s00396-008-1924-9

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KW - Dispersion polymerization

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