Citation: Chun Sheng Li, Jing Cui Liang, Xiao Li Zhu, Xiang Zheng Kong. Effects of cosolvent on formation and morphology of microspheres in precipitation polymerization of divinylbenzene in supercritical carbon dioxide[J]. Chinese Chemical Letters, ;2011, 22(4): 489-492. doi: 10.1016/j.cclet.2010.10.022 shu

Effects of cosolvent on formation and morphology of microspheres in precipitation polymerization of divinylbenzene in supercritical carbon dioxide

Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China

Received Date: 19 July 2010

Fund Project: This research is financial supported by National Natural Science Foundation of China (No. 20904016), Natural Science Foundation of Shandong Province (No. Y2008F30), and Doctoral Foundation of Shandong Province, China (No. 2007BS04036).

Precipitation polymerizations of divinylbenzene (DVB) in pure supercritical carbon dioxide, and parallel runs with presence of a cosolvent were carried out. The results showed that use of acetone as the cosolvent contributed greatly to the formation of the monodisperse microspheres. PDVB microspheres, with obviously higher uniformity than reported up to date, were achieved using 6-7 mL of acetone in a reactor of 50 mL with DVB concentration of 0.4 mol/L under 16 MPa, a much lower pressure than previously reported without use of cosolvent.
- Polydivinylbenzene microspheres,
- Precipitation polymerization,
- Supercritical carbon dioxide,
- Cosolvent
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