کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
610126 | 1454610 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and characterisation of silica monoliths using a triblock copolymer (F68) as porogen
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Silica-based monoliths with co-continuous structure were successfully prepared through a sol–gel process in the presence of a poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (F68). The triblock copolymer was compared to the classical PEG, in the formation of silica monoliths and was demonstrated to lead to co-continuous structures in a wider composition range, presenting smaller through pores. Moreover, mesoporous structures templated at the sol–gel transition were assumed to occur at the surface of the silica skeleton while PEG exhibited no mesopore templating.
Monolithic silicas prepared using F68 (a) exhibit smaller domains than those prepared using PEG (b).Figure optionsDownload as PowerPoint slide
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 340, Issue 2, 15 December 2009, Pages 225–229
Journal: Journal of Colloid and Interface Science - Volume 340, Issue 2, 15 December 2009, Pages 225–229
نویسندگان
Joseph Chamieh, Yvan Zimmermann, Anne Boos, Agnès Hagège,