University of Toronto

Zia Saadatnia

Omid Aghababaei Tafreshi

Shahriar Ghaffari-mosanenzadeh

Hani Naguib

The present disclosure provides a method of fabrication of physically crosslinked polyimide (PCPI) aerogels with significantly improved properties using no chemical crosslinker. The fabricated PCPI aerogels present high moisture resistance, hydrophobic behavior, ultralow density, ultrahigh porosity, excellent thermal stability, increased mechanical strength, and high mechanical flexibility. Also, samples have been successfully fabricated in a thin-film geometry with high mechanical flexibility and controlled thickness. Furthermore, some fabricated aerogel films present improved optical transparency of over 80%, which is the highest transparency reported so far for organic PI aerogels.

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North York, Canada

Zia Saadatnia