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Application of Benzoxazine-Based Dimers, Oligomers, and Polymers as Chelating Agents
(Wiley VCH Verlag, 2019-01)
Polybenzoxazines are a relatively new type of thermoset polymer that has primarily been used for the development of composite materials. However, there is an existing interest in expanding the applications for this family ...
Tuning morphology of siloxane bond-based polybenzoxazines by controlling the sol–gel and curing processes
(John Wiley & Sons Inc, 2021-06)
Novel polybenzoxazine/polysilsesquioxane nanocomposites were synthesized with uniform and reproducible structural morphology, high Tg, and good thermal stability. Polysilsesquioxane was oriented in a nanometer-size lamellar ...
Simple and low energy consuming synthesis of cyanate ester functional naphthoxazines and their properties
(Royal Society of Chemistry, 2016-03)
Naphthoxazines functionalized with a cyanate ester group are synthesized in high yield under moderate conditions, including room temperature synthesis, compared with general benzoxazine synthesis. Additionally, this synthesis ...
Tailor-made and chemically designed synthesis of coumarin-containing benzoxazines and their reactivity study toward their thermosets
(John Wiley & Sons Inc, 2016-05)
Coumarins are used as a natural renewable resource to synthesize coumarin-containing benzoxazine resins. The coumarin-containing benzoxazines are fully characterized in terms of their chemical structure by Fourier-transform ...
Study of the Effects of Intramolecular and Intermolecular Hydrogen-Bonding Systems on the Polymerization of Amide-Containing Benzoxazines
(Wiley VCH Verlag, 2017-02-14)
Pure para and ortho position amide benzoxazines, pHBA-a and oHBA-a, are synthesized. The hydrogen bonding interactions occurring in pHBA-a and oHBA-a are studied by Fourier transform infrared (FT-IR) spectroscopy and proton ...
Cone Calorimetry Studies of Benzoxazine-Epoxy Systems Flame Retarded By Chemically Bonded Phosphorus or Silicon
(Elsevier, 2009-12)
The combustion behaviour of phosphorus- and silicon-containing benzoxazine-epoxy systems has been studied by LOI and cone calorimetry giving a clear evidence that incorporation of 3.5% P into the benzoxazine-epoxy systems, ...
Curing process of benzoxazine systems. An experimental and theoretical study
(Planta Piloto de Ingeniería Química, 2019-09)
A mathematical model that simulates the curing process of benzoxazine (Bz) systems is presented. The model predicts the conversion, gel point and Tg along the curing process, and considers the diffusional limitations to ...
Triggering effect caused by elemental sulfur as a mean to reduce the polymerization temperature of benzoxazine monomers
(Royal Society of Chemistry, 2016-03)
Mixtures of different benzoxazine resins and elemental sulfur (S8) are prepared and then reacted at 120 °C, below the temperature for radical formation of sulfur. The progress of the reaction and the chemical structures ...
Tetramethyl guanidine-assisted synthesis and thermal crosslinking of multifunctional benzoxazine monomers based on natural phloretic acid
(John Wiley & Sons Inc, 2021-09)
An efficient strategy to synthesize novel biobased multifunctional benzoxazine compounds was developed using the 1,1,3,3-tetramethyl guanidine (TMG)-triggered esterification of natural phloretic acid with organic halides ...
Intrinsic self-initiating thermal ring-opening polymerization of 1,3-benzoxazines without the influence of impurities using very high purity crystals
(John Wiley & Sons Inc, 2017-10)
A phenol/aniline type monofunctional benzoxazine monomer, PH-a, is synthesized and highly purified to study the intrinsic thermal ring-opening polymerization of benzoxazines without the influence of any impurity. The ...