Synthesis of new polymers via Diels–Alder reaction. III. Biscyclohexadienephthalimides as dienes

Difunctional cyclohexadienes with dihydrophthalimide central units and phenyl side groups to increase solubility are used as bisdienes in repetitive Diels‐Alder polyadditions with bis(4‐(1,2,4,‐triazoline‐3,5‐dione‐4‐yl)phenyl)methane as a difunctional dienophile. The polymers show good solubility in CH 2 CI 2 and CHCI 3. Non‐stoichiometric Diels‐Alder polyaddition with slight excess of the bistriazo‐linedione provides the possibility of synthesizing telechelics with highly reactive triazolinedione end groups.