2. INTRODUCTION What are polyimides? what is the basic structural unit? Polyimides are polymers formed by the combination of acid dianhydrides and diamines.
32. Cross linked bonds will break during thermal degradation
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34. Incase of aromatic polyimides, delocalization energy of Pi-electrons is released. THERMAL DEGRADATION OF POLYIMDES: 19
35. BIBLIOGRAPHY: www.wikipedia.org Polymer Science and Technology by Joel R.Fried www.google.com 4. Text Book Of Polymer Science by Fred W. Billmeyer 20