20.500.12556/RUL-107693 Kinetic model of a Diels-Alder reaction in a molten state thermal and viscoelastic behaviour Information on the reaction kinetics in the melt is a valuable prerequisite for a successful application of self-healing ability to benzoxazine-based thermosetting resins. The goal of this research was to develop a kinetic model of the Diels–Alder (DA) reaction in a molten state between N-phenylmaleimide (PMI) and benzoxazine-containing furan group (G-f). Rheological data were found to be of significant importance in the kinetic model development and interpretation. The increase in viscosity, the occurrence of side reactions, and equilibrium between DA and r-DA reaction were identified as possible reasons for the deceleration of reaction rate and limiting conversion. After a thorough investigation of the studied system, accompanied by the knowledge from the literature, the potential reason for the incomplete conversion of reactants was reduced to the crossover between chemically and diffusion-controlled reaction due to the increasing viscosity of reaction system. Accordingly, the kinetic model based on the combination of Rabinowitch equation and Chern–Poehlein model was used to accurately describe the progress of the studied reaction in the molten state. Diels-Alder reaction molten state thermal behaviour rheology kinetic model Diels-Alderjeva reakcija staljeno stanje termično obnašanje reologija kinetični modeli true false true Angleški jezik Slovenski jezik Članek v reviji 2019-05-14 11:24:43 2019-05-14 11:29:41 2022-08-19 03:50:36 0000-00-00 00:00:00 2020 0 0 Str. 1377-1397 no. 3 Vol. 77 2020 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2020-05-14 66.09 0170-0839 10.1007/s00289-019-02805-z 1538222787 26154240 RAZ_Rucigaj_Ales_2020.pdf RAZ_Rucigaj_Ales_2020.pdf 1 F0758402C52694F9D2DA9F9AEB95E1F6 0a32b4b9cfe2404bf30c50f5c43ad17840f6ed89a000d1c934170d7604c22752 bae28b0b-a1bb-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=141280 https://link.springer.com/article/10.1007/s00289-019-02805-z 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=118575 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0