| http://www.w3.org/ns/prov#value | - Preferred diamines for the synthesis of imide oligomers that include our multiple chemically functional end caps have the formula: ##STR26## wherein R* and R' are aromatic radicals, at least one of R* and R' being a diaryl radical whereto the aryl rings are joined by a "sulfone linkage (L), and t is an integer from 0 to 27 inclusive.
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