Polyimide materials represent one more major area where chemical selection forms end-use performance. Polyimide diamine monomers and polyimide dianhydrides are the key building blocks of this high-performance polymer family members. Depending upon the monomer structure, polyimides can be created for flexibility, warm resistance, openness, low dielectric continuous, or chemical toughness. http://pandora.nla.gov.au/external.html?link=https://www.aurechem.com/platinum-precursors-catalyst-preparation-n.html