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Colloid and Polymer Science
Erschienen in: Colloid and Polymer Science 16-17/2010

01.11.2010 | Original Contribution

Preparation of polydivinylbenzene microspheres in supercritical carbon dioxide using acetone as cosolvent

verfasst von: Chunsheng Li, Jingcui Liang, Xiaoli Zhu, Xiang Zheng Kong

Erschienen in: Colloid and Polymer Science | Ausgabe 16-17/2010

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Abstract

Monodisperse polydivinylbenzene (PDVB) microspheres with clean surface were prepared by precipitation polymerization without stabilizer in supercritical carbon dioxide using acetone as cosolvent. Effects of the cosolvent, reaction time and pressure, and monomer concentration on the polymerization were studied. It was found that the conversions in all polymerization systems were above 95%. Examination by scanning electron microscopy showed that reaction pressure, divinylbenzene concentration, and level of the cosolvent had pronounced effects on the morphology of the microspheres. When 6 ∼ 7 ml of acetone was used in a reactor of 50 ml, monodisperse PDVB microspheres of around 2.1 μm in diameter were obtained. Thermal gravimetrical analysis showed the products were of good thermostability up to about 400 °C.
Vorheriger Artikel Gelation behavior of thermoplastic-modified epoxy systems during polymerization-induced phase separation
Nächster Artikel Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study

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Metadaten
Titel
Preparation of polydivinylbenzene microspheres in supercritical carbon dioxide using acetone as cosolvent
verfasst von
Chunsheng Li
Jingcui Liang
Xiaoli Zhu
Xiang Zheng Kong
Publikationsdatum
01.11.2010
Verlag
Springer-Verlag
Erschienen in
Colloid and Polymer Science / Ausgabe 16-17/2010
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-010-2296-5

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