کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9559228 1381146 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Precipitation polymerisation of vinylidene fluoride in supercritical CO2 and real-time calorimetric monitoring
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Precipitation polymerisation of vinylidene fluoride in supercritical CO2 and real-time calorimetric monitoring
چکیده انگلیسی
Vinylidene fluoride was polymerised in supercritical carbon dioxide. Power compensation calorimetry was used to monitor the polymerisation process on-line. The polymer product was found to have a low apparent-density, leading to an observed high solid content in the autoclave at low yields. In situ calorimetry showed a sharp transition of the heat transfer in the reactor, leading to a useful parameter for monitoring the polymerisation process. The stirring rate was found to have no effect on the molecular weight, but did modify the calorimetric traces and the morphology of the polymer. The polymerisation at a lower pressure resulted in a lower molecular weight product and a lower polymerisation rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 5, 14 February 2005, Pages 1467-1472
نویسندگان
, , ,