Аутори:
1. Milica Balaban, Природно-математички факултет Бања Лука, Republic of Srpska, Bosnia and Herzegovina
2. Silvester Bolka, Факултет за технологију полимера , Slovenia
3. Vesna Antić, Универзитет у Београду, Пољопривредни факултет, Serbia

Апстракт:
Telechelic poly(dimethylsiloxane) oligomers are usually synthesised by siloxane equilibration reaction at relatively high temperatures. In present paper a series of α,ω–dihydroxybutyl-poly(dimethyl siloxane)s (PDMS) of the controlled molecular weight was synthesized in the presence of a cation-exchange resin as the heterogeneous catalyst. Influence of the reaction temperature on the molecular weight of the PDMS oligomers was investigated by 1H NMR spectroscopy, thermogravimetric analysis - infrared spectroscopy (TG-FTIR) and dilute solution viscometry. The results showed that performing the reaction at low temperature allowed complete control of the molecular weight of the synthesized oligomers.

Кључне речи:
hydroxybutyl-terminated PDMS, siloxane equilibration reaction, 1H NMR spectroscopy

Тематска област:
СИМПОЗИЈУМ А - Наука материје, кондензоване материје и физикa чврстог стања

Датум пријаве сажетка:
26.07.2018.

Конференцијa:
Contemporary Materials 2018 - Савремени Материјали