Undecenoic acid-based polydimethylsiloxanes obtained by hydrosilylation and hydrothiolation reactions

Publication date: Available online 13 December 2019Source: Journal of Organometallic ChemistryAuthor(s): Sergey A. Milenin, Fedor V. Drozdov, Elizaveta V. Selezneva, Sofia N. Ardabevskaia, Mikhail I. Buzin, Aziz M. MuzafarovAbstractIn the present work for the first time polydimethylsiloxanes containing a rigid segment based on N,N-(ethane-1,2-diyl)diundec-10-enamide in the main chain were synthesized by hydrosilylation and hydrothiolation reactions. As a result, oligomers and polymers with various molecular weights from 3000 to 52000 (g mol−1, GPC) were obtained. The thermal properties of the obtained copolymers were investigated by TGA and DSC analysis.All PDMS copolymers containing different amounts of diamide fragments exhibit properties that are distinct from pure polydimethylsiloxane, which indicates a significant influence of a rigid fragment capable of forming hydrogen bonds on the phase behavior of the resulting copolymers.Graphical abstract

Source: Journal of Organometallic Chemistry - December 14, 2019 Category: Chemistry Source Type: research