The polymerization behavior and thermal properties of benzoxazine based on o-allylphenol and 4,4′-diaminodiphenyl methane

Novel benzoxazines having vinyl groups were synthesized from phenol or bisphenol A, 3- or 4-vinylaniline and paraformaldehyde. The chemical structures of the monomers were confirmed by Fourier transform infrared and 1H-NMR analyses. The polymerization behavior of the monomers was monitored by differential scanning calorimetry. Exothermic peak of the monomers appeared in the range of 219–252 °C, due to the chain polymerization of the vinyl group and the ring-opening polymerization of benzoxazine occurring at the same temperature range. The thermal cure of the monomers afforded polybenzoxazines that have higher thermal properties than those from typical benzoxazines without vinyl groups. For example, glass transition temperature ( Tg) increased for 40 to 100 °C by the introduction of vinyl groups, the highest Tg being observed at 290 °C. The 5% weight loss temperature determined by thermogravimetric analysis also increased by the introduction of vinyl groups.

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Dynamic mechanical and thermal properties of copolymer from o-allylphenol and 4,4′-diaminodiphenyl methane-based benzoxazine and bisphenol-A type novolac epoxy resin

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-014-4239-8 ◽

2014 ◽

Vol 119 (2) ◽

pp. 1439-1444 ◽

Cited By ~ 3

Author(s):

Zhanzhan Hao ◽

Shufang Lv ◽

Shuning Song ◽

Yuehong Li ◽

Haili Zhang ◽

...

Keyword(s):

Thermal Properties ◽

Bisphenol A ◽

Epoxy Resin ◽

Mechanical And Thermal Properties ◽

Dynamic Mechanical ◽

Novolac Epoxy ◽

Diaminodiphenyl Methane

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Radical polymerization behavior and thermal properties of vinyl ethylene carbonate derivatives bearing aromatic moieties

Polymer ◽

10.1016/j.polymer.2016.09.002 ◽

2016 ◽

Vol 102 ◽

pp. 167-175 ◽

Cited By ~ 9

Author(s):

Yoshiaki Yoshida ◽

Takeshi Endo

Keyword(s):

Thermal Properties ◽

Radical Polymerization ◽

Ethylene Carbonate ◽

Polymerization Behavior

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An apigenin-based bio-benzoxazine with three polymerizable functionalities: sustainable synthesis, thermal latent polymerization, and excellent thermal properties of its thermosets

Polymer Chemistry ◽

10.1039/d0py00983k ◽

2020 ◽

Vol 11 (36) ◽

pp. 5800-5809

Author(s):

Boran Hao ◽

Lu Han ◽

Yuqi Liu ◽

Kan Zhang

Keyword(s):

Thermal Stability ◽

Thermal Properties ◽

High Thermal Stability ◽

Sustainable Resources ◽

Polymerization Behavior

An apigenin-based benzoxazine exhibiting a thermal latent polymerization behavior, high thermal stability and low flammability has been synthesized from sustainable resources.

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