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AssigneeVirginia Tech Intellectual Properties, Inc.
InventorsGuoliang Liu, Zhen Xu, Alan Roger Esker, Gehui Liu
Estimating the term…
In one aspect, the disclosure relates to azide-containing poly(ether imide) polymers (PEIs; N3-PEI-N3) synthesized via a heterogenous diazotizationazidation reaction. In one aspect, the azide-containing PEIs can be solution-cast into films and then thermally crosslinked. In a further aspect, the crosslinked PEIs (X-PEIs) exhibit superior thermal and mechanical properties. In a still further aspect, X-PEIs display outstanding resistance to classical solvents for conventional PEI, including THF, DCM, chloroform, DMF, and NMP. In another aspect, with an initial number average molecular weight (Mn) of 8.9 kDa, the disclosed azide-containing PEIs have a high crosslinking density and thus possess desirable thermal, mechanical, and solvent resistance properties.
A method for making a crosslinked poly(ether imide) polymeric film, the method comprising:
A crosslinked polymeric film comprising a plurality of polymeric units of Formula III:
Dependencies are inferred from the claim text.