Preparation of nonspherical polymer particles by spraying aqueous dispersions of hydrophobic solvent droplets into methanol

Nonspherical polymer particles were prepared by spraying an aqueous dispersion of hydrophobic solvent droplets (containing dissolved polymers) into methanol. Nonspherical particles were prepared for polystyrene and poly(methyl methacrylate), and spherical particles were prepared for poly(ethyl metha...

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Bibliographic Details
Published inColloid and polymer science Vol. 280; no. 8; pp. 765 - 769
Main Authors OKUBO, M, KONISHI, Y, SEBKI, S, MINAMI, H
Format Journal Article
LanguageEnglish
Published Berlin Springer 01.08.2002
Springer Nature B.V
Subjects
Applied sciences
Atoms & subatomic particles
Chemical industry
Exact sciences and technology
Forms of application and semi-finished materials
Miscellaneous
Polymer industry, paints, wood
Polymers
Technology of polymers
Solvent effect
Structure processing relationship
Liquid sputtering
Manufacturing process
Morphology
Methyl methacrylate polymer
Styrene polymer
Non spherical particle
Particle shape
Experimental study
Formation mechanism
Aqueous dispersion
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Summary:Nonspherical polymer particles were prepared by spraying an aqueous dispersion of hydrophobic solvent droplets (containing dissolved polymers) into methanol. Nonspherical particles were prepared for polystyrene and poly(methyl methacrylate), and spherical particles were prepared for poly(ethyl methacrylate) and poly(i-butyl methacrylate). It is concluded that condensation of the polymer molecules at the interface of the droplet is a key factor for the formation of nonspherical polymer particles.[PUBLICATION ABSTRACT]
ISSN:0303-402X
1435-1536
DOI:10.1007/s00396-002-0668-1