Additionally, a comparison study of the POM textures of the composites is shown in Figure 10. The results demonstrate that all composites showed similar LC phase transitions with relatively lower temperatures than pure OOBA. In the composites with lower OOBA contents (e.g., P2 and P4), the OOBA phase tended to disperse into the isolated OOBA phase in an SMPU matrix. As shown in Figure 9, the black phase is the SMPU phase, and the bright phase is the OOBA LC phase. When the OOBA-content was higher, the OOBA phase could also form a continuous OOBA phase in the composites. This result confirms that the crystalline behaviours and LC properties of OOBA are maintained in all SMPU-OOBAm composites. It is thus confirmed again that SMPU-OOBAm composites can make the OOBA mesogens be used in many polymeric materials applications, including flexible displays, electronic papers, etc.