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Mechanism of formation of monodisperse polystyrene hollow particles prepared by membrane emulsification technique. Effect of hexadecane amount on the formation of hollow particles
Alternative TitleMacromol. Symp.
Ma, G. H.
2002
Conference Name15th Bratislava International Conference on Polymers, Non-Conventional Polymer Dispersions
Source PublicationMacromolecular Symposia
Issue179
Pages223-240
Conference Date2001
Conference PlaceSMOLENICE, SLOVAKIA
AbstractIn a previous study, it was found that monodisperse polystyrene (PSt) hollow particles can be prepared under special conditions by combining a Shirasu Porous Glass (SPG) emulsification technique and subsequent suspension polymerization process. The dispersed phase mainly containing St, hexadecane (HD), and initiator, was pressed through the uniform pores of a SPG membrane into the continuous phase to form uniform droplets. Then, the droplets were polymerized at 70degreesC, It was proposed that rapid phase separation between PSt and HD was a main reason responsible for the formation of hollow particle, Rapid phase separation confined the HD inside the droplets, it belonged to a non-equilibrium morphology. In this study, HD/St ratio was increased to a high value to confirm the above proposition by promoting rapid phase separation further between HD and PSt, to prevent monomer diffusion into aqueous phase, and to obtain hollow particle with a large hole.
KeywordMethacrylate) Composite Microspheres Polymer Particles Morphology Development Interfacial Phenomena Emulsion
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Indexed ByCPCI
Language英语
Document Type会议论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5631
Collection生化工程国家重点实验室
Recommended Citation
GB/T 7714
Ma, G. H.. Mechanism of formation of monodisperse polystyrene hollow particles prepared by membrane emulsification technique. Effect of hexadecane amount on the formation of hollow particles[C],2002:223-240.
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