| 초록 |
We synthesized a series of plant-based capsaicin substituted polystyrene (PCAP#, #=20, 40, 60, 80, and 100), where # is the molar contents of N-vanillylnonanamide (VNA) moiety as one of the capsaicin derivatives, using polymer analogous reactions. To investigate the LC alignment behavior on molar contents of VNA in PCAP#, we fabricated the LC cells made from PCAP# films. Typically, the LC cell fabricated using the polymer film having a higher molar content of VNA side groups showed vertical LC alignment behavior. The vertical alignment behavior was well correlated with the surface energy of these polymer films. For example, vertical alignment was observed when the surface energy values of the polymer were smaller than about 29.26 mJ/m2 generated by the nonpolar and long carbon groups. This can give the basic idea for the design of LC alignment layers based on renewable capsaicin resource containing polymer films. |
