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Synthesis and properties of prepolymers and their siloxane analogues by thiol‐ene polyaddition of limonene with dithiols
Authors:Fedor V Drozdov  Alexandr N Tarasenkov  Georgij V Cherkaev  Nina V Demchenko  Michail I Buzin  Larissa A Leites  Aziz M Muzafarov
Abstract:This work presents a synthesis of monomers from a natural compound (limonene) and dimethylsiloxanes with various chain lengths by hydrosilylation. Based on these monomers, prepolymers with various lengths of the siloxane and methylene parts, as well as their analogues without siloxane moieties, were obtained by thiol‐ene polyaddition with ethanedithiol, butanedithiol and hexanedithiol. Their physicochemical characteristics, namely the thermal stability, phase behaviour and intrinsic viscosity of the polymers obtained, were compared as a function of the length of the methylene spacer and the siloxane part in the polymer chain. © 2019 Society of Chemical Industry
Keywords:limonene  hydrosilylation  thiol‐ene  renewable copolymers
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