Polymer-Mineral Porous Materials Based on the Wide-Porous Silica and Poly-Hydroxyethylmethacrylate

Autor: S. S. Hayrapetyan, H. G. Khachatryan
Rok vydání: 2005
Předmět:
Zdroj: Chromatographia. 61:609-613
ISSN: 1612-1112
0009-5893
DOI: 10.1365/s10337-005-0553-4
Popis: Polymer-mineral hybrid porous system based on the wide-porous silica and co-polymers of 2-OH hydroxyethylmethacrylate (2-OH EMA) with triethylenglycoldimethacrylate (TEGDMA) and maleinic anhydride (MA) have been studied by means of the BET method. Polymer layer was deposited by means of the “dry polymerization” of the mixture of 2-OH EMA, TEGDMA or 2-OH EMA, MA and TEGDMA monomers on the surface of the wide-porous silica in the presence of the polymerization initiator – dicumyl peroxide (DCP). Maleic anhydride was also introduced to the content of the initial polymer layer by means of the “dry polymerization” method. The observed secondary structure-formation may be explained by pores appearance in the course of the polymerization of the deposited organic mixture. The appearance of the micro-pores is observed in this case along with formation of the meso-pores and this phenomenon may be evaluated by changes of the shapes and size of hysteresis loop on the nitrogen adsorption isotherms on the surface of the obtained porous systems.
Databáze: OpenAIRE
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