Precipitation polymerisation of vinylidene fluoride in supercritical CO2 and real-time calorimetric monitoring
作者： Jun Liu , Hongyun Tai , Steven M. Howdle
DOI: 10.1016/J.POLYMER.2004.12.015
关键词: Fluoride 、 Chemical engineering 、 Polymer 、 Precipitation (chemistry) 、 Polymerization 、 Supercritical fluid 、 Autoclave 、 Supercritical carbon dioxide 、 Chemistry 、 Calorimetry 、 Polymer chemistry
摘要: Vinylidene fluoride was polymerised in supercritical carbon dioxide. Power compensation calorimetry used to monitor the polymerisation process on-line. The polymer product found have a low apparent-density, leading an observed high solid content autoclave at yields. In situ showed sharp transition of heat transfer reactor, useful parameter for monitoring process. stirring rate no effect on molecular weight, but did modify calorimetric traces and morphology polymer. lower pressure resulted weight rate.
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