Intense emission Researchers have developed linear and zigzag-type polymers consisting of fused-boron ketoiminates. The obtained polymers exhibited intense emission in both solution and film states. Interestingly, it was found that one of the linear polymers presented thermochromic luminescence in solution. From the series of mechanistic analyses, it was proposed that assembly should play an important role in their stimuli-responsive luminescence colour changes. Moreover, a mechanochromic luminescence property was also observed from the zigzag-type polymer in the solid state. The luminochromic behavior could originate from changes in the morphology of the conjugated polymers after grinding. Suenaga, Kazumasa , ...