DGEBA weight loss behavior at TGA experiment ?

Janitha Jeewantha @Janitha-Jeewantha

16 April 2021 1 2K Report

Hi,

Here I attached TGA test results of DGEBA based expoy.

What was the reason to have such a weight drop?

Thank you,

Janitha

Debarati Ghosh

Dear Janitha,

There are two events occurring at 330.81 and 515.28 deg C.DGEBA is a symmetrical molecule and has high stability, but also it is an organic bulky molecule, hence the energy required to break DGEBA maybe substantially higher as compared to conventional organic compounds but also lower than inorganic substances. This means at 330.81deg C , there is a weight loss(probably due to cleaving and elimination at the phenylpropan2-yl region ) and the second event at 515.28 deg C because of elimination of the oxiran group.

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