1. Milica Balaban, Prirodno-matematički fakultet Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
2. Rebeka Lorber, FTPO, Slovenia
3. Miroslav Huskić, FTPO, Slovenia
4. Vesna Antić, Univerzitet u Beogradu, Poljoprivredni fakultet, Serbia
Siloxane equilibration reaction in the presence of appropriate functional disiloxanes is a common method for synthesis of telechelic siloxane oligomers. Due to high reaction temperature, synthesis of hydoxy-terminated polysiloxane are accompanied by number side reactions. In this paper, the synthesis of hydroxy-terminated siloxane oligomers at relatively low temperatures was optimized. The oligomers of the controlled molecular weight was synthesized in the presence of heterogeneous catalyst and characterized by spectroscopic and thermal methods, as well as thermogravimetric analysis - infrared spectroscopy (TG-FTIR) and dilute solution viscometry.
Keywords: hydroxy-terminated PDMS, siloxane equilibration reaction, 1H NMR spectroscopy
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Datum:
31.07.2021.
Contemporary Materials 2021 - Savremeni materijali
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