Tailoring the structural properties of macroporous electron-beam polymerized cryogels by pore forming agents and the monomer selection

Autor:	Senta Reichelt, Wolfgang Knolle, Christian Abe, Andrea Prager
Rok vydání:	2014
Předmět:	Radiation Materials science Aqueous solution Scanning electron microscope Polyethylene glycol chemistry.chemical_compound Monomer Polymerization Chemical engineering chemistry X-ray photoelectron spectroscopy Polymer chemistry medicine Swelling medicine.symptom Porosity
Zdroj:	Radiation Physics and Chemistry. 94:40-44
ISSN:	0969-806X
DOI:	10.1016/j.radphyschem.2013.04.010
Popis:	In this study the influence of polyethylene glycol pore forming agents and the monomer selection on the conversion, the morphology and swelling properties of electron-beam derived macroporous cryogels was investigated. The cryogels were synthesized at subzero temperatures from aqueous solutions by applying a pulsed electron beam of a high-energy linear accelerator. The macroporous structure is templated by the ice crystals and the morphology and swelling characteristics depend on the type of monomers used. Pore forming agents introduce smaller pores in the naturally non-porous cryogel walls. The porous structure and swelling properties can be tailored by the choice of the monomer. The systems were thoroughly analyzed by scanning electron microscopy, X-ray photoelectron spectroscopy, thermogravimetrical analysis and mercury intrusion porosimetry.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8aa012942b8dc53457dab99988d74269 https://doi.org/10.1016/j.radphyschem.2013.04.010 Zobrazit plný text záznamu Full Text from ScienceDirect