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ベンゾオキサジンの重合における有機触媒としての桂皮酸の化学構造の設計と効果
Design and Effects of the Cinnamic Acids Chemical Structures as Organocatalyst on the Polymerization of Benzoxazines.
PMID: 32660123 DOI: 10.3390/polym12071527.
抄録
本研究では、桂皮酸誘導体の2つの幾何学的異性体と3-メトキシ桂皮酸(3OMeCA)の化学構造の影響を分析し、その触媒効果に焦点を当てた。等温重合は、-3OMeCAの代わりに-3OMeCAを使用して、130℃という低い温度で、はるかに短い時間で重合が容易に実現され、分析されることを示している。このように、両方の桂皮酸は良い触媒であり、-3OMeCAが優れています。この違いの分子的な理由とベンゾオキサジン重合における機構的な意味合いについても紹介する。
This study focuses on the catalytic effect of the two geometric isomers of a cinnamic acid derivative, and -forms of 3-methoxycinnamic acid (3OMeCA), analyzing the influence of their chemical structures. and -3OMeCA isomers show very good catalytic effect in the polymerization of benzoxazines, decreasing by 40 and 55 °C, respectively, the polymerization temperatures, for catalyst contents of up to 10% w/w. Isothermal polymerizations show that polymerizations are easily realized and analyzed at temperatures as low as 130 °C and at much shorter times using -3OMeCA instead of -3OMeCA. Thus, both cinnamic acids are good catalysts, with -3OMeCA being better. The molecular reasons for this difference and mechanistic implications in benzoxazine polymerizations are also presented.