Rumeng Li1, Guozhu Zhan2, Qi Ma1, Yunhe Yang1, Xiaoyun Liu1,*, Yitong Zhang1, Qixin Zhuang1
Journal of Renewable Materials, Vol.9, No.12, pp. 2093-2117, 2021, DOI:10.32604/jrm.2021.015827
Abstract To explore the influence of substituent groups on thermally induced curing, eight new bio-based benzoxazines
containing different substituent groups with different electron negativity and volumes were synthesized. The thermal curing of these bio-based benzoxazines was studied in detail. Combined with the curing reaction kinetics,
simulation and calculation of Highest Occupied Molecular and Lowest Unoccupied Molecular values, the spatial
and electronic effects of different substituent groups on the curing of benzoxazine was explored. It was found that
when the substituent was located at the position directly connected to the N atom, the steric hindrance effect of
the group was dominant. When… More >
Graphic Abstract
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