Abstract
The side-chain liquid crystalline polymers containing terminally substituted biphenyl cinnamoyl esters were synthesized and characterized The structures of the synthesized photosensitive liquid crystalline polymers have been characterized by spectral techniques such as IR, 1H NMR and 13C NMR, and UV visible spectrometer. The rates of photocrosslinking behavior and photoconversion of the polymers have been studied by UV visible spectroscopy. The UV study reveals that the polymer follows (2π + 2π) cycloaddition reaction during their photocrosslinking. Polarizing optical microscopic and differential scanning calorimetry (DSC) studies confirm the formation of thermotropic mesophase upon heating. The above polymers exhibit nematic mesophase. The thermogravimetric analysis (TGA) and DSC studies prove that the nature of the terminal substituent has a significant effect on mesophase temperature as well as thermal stability of these liquid crystalline photoactive polymers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
