The reversion of photoalignment direction of a liquid crystal induced by a polymethacrylate with coumarin side chains

Synthesis of new aromatic polyimides wit

Synthesis of new aromatic polyimides with various side chains containing a biphenyl mesogen unit and their abilities to control liquid-crystal alignments on the rubbed surface

✍ S. I. Kim; M. Ree; T. J. Shin; J. C. Jung 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 189 KB 👁 2 views

New poly(m-phenylene 4,4Ј-oxydiphthalimide)s containing various side chains, such as 6-(4-biphenylmethoxy)hexyloxy group and 6-(phenylphenoxy)hexyloxy isomers, were synthesized, giving thin films of a high quality. All the polyimides apparently were almost amorphous, but exhibited short-range orderi