Insight into functionalized DMN-co-GMA copolymers

Autor:	Małgorzata Maciejewska, Magdalena Rogulska
Rok vydání:	2019
Předmět:	Materials science Thermal decomposition Condensed Matter Physics Methacrylate Decomposition chemistry.chemical_compound chemistry Polymerization Chemical engineering Specific surface area Diethylenetriamine Copolymer Physical and Theoretical Chemistry Fourier transform infrared spectroscopy
Zdroj:	Journal of Thermal Analysis and Calorimetry. 138:4485-4495
ISSN:	1588-2926 1388-6150
DOI:	10.1007/s10973-019-08327-0
Popis:	Suspension–emulsion polymerization was applied to obtain porous microspheres of 2,3-epoxypropyl methacrylate (GMA) cross-linked with 1,4-di(methacryloyloxymethyl)-naphthalene (DMN). In the next step, the porous methacrylate network was modified by subsequent reaction with diethylenetriamine. The newly obtained functionalized material was characterized in detail. After the process of modification, a drop in the value of specific surface area of the functionalized copolymers was observed. Their thermal behavior was monitored by TG/DSC/FTIR methods in inert and oxidative conditions. The reaction with diethylenetriamine resulted in the decrease in thermal resistance of the obtained porous microspheres. Initial decomposition temperatures (IDTs) established in helium atmosphere fell down from 258–269 °C for parent copolymers to 206–220 °C for modified ones. The same situation was observed in synthetic air atmosphere. IDTs decreased from 249–269 to 207–230 °C. Moreover, the thermal decomposition of the functionalized microspheres exhibited multistage decomposition patterns different from parent GMA-DMN copolymers.
Databáze:	OpenAIRE
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