AI Article Synopsis
- The study examines the catalytic effects of two geometric isomers of 3-methoxycinnamic acid (3OMeCA) on the polymerization of benzoxazines, highlighting how their chemical structures impact their efficiency.
- Both isomers demonstrate significant catalytic activity, reducing polymerization temperatures by 40 °C and 55 °C for the α and β forms, respectively, at catalyst concentrations of up to 10% w/w.
- The α-3OMeCA isomer proves to be the more effective catalyst, facilitating polymerization at lower temperatures (as low as 130 °C) and shorter times compared to the β form, while also discussing the molecular mechanisms behind these observations.
Article Abstract
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.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7407967 | PMC |
| http://dx.doi.org/10.3390/polym12071527 | DOI Listing |
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