Polymers from coumarines: 4. Design and synthesis of novel hyperbranched and comb-like coumarin-containing polymers

摘要

Novel monomers containing coumarin groups [2-(7-Cumarinyloxy)Oethoxy] dimethyl terephthalate and [6-(3-carboxy)coumarinyl] diacetylhydroquinone were synthesized and polymerized by high temperature polycondensation to give hyperbranched and comb-like coumarin-containing polymers. All polymers were completely soluble in chlorinated aliphatic hydrocarbons and showed M-n in the range of 2000-50000 and gave film of good optical quality on casting from solution. All polymers except one were amorphous with T-g in the range of 100-230 degrees C and thermostability of 370-415 degrees C. All polymers were found to be blue emitters emitting light in the range 450-492 nm. (C) 1998 Elsevier Science Ltd. All rights reserved. [References: 17]