《Thermal- and photo-responsive liquid crystalline elastomers fabricated using tung oil-based azobenzene》 was written by Zhang, Haibo; Li, Wanbing; Liu, He; Shang, Shibin; Song, Zhanqian. Application of 627-18-9This research focused ontung oil azobenzene liquid crystalline elastomer thermal photo behavior. The article conveys some information:
Azobenzene-based liquid crystalline elastomers with dynamic ester bonds exhibit high thermal- and photo-responsive properties. However, there are a few studies that focus on photo-induced and thermal-induced behaviors sep. Herein, novel thermal- and photo-responsive LCEs containing dynamic ester bonds were prepared from 4,4-diglycidyloxy-azobenzene, sebacic acid and tung oil-based azobenzene, which acted as a side chain. The dynamic transesterification reactions on the network structure were confirmed through stress relaxation. The photo-induced and thermal-induced behaviors were also investigated. The monodomain LCEs film was obtained by uniaxial stretching at a temperature above the smectic-isotropic phase transition temperature (Ti ∼82°C). Due to the breakage and formation of dynamic ester bonds and the order-disorder smectic phase transition caused by heat and the trans-cis isomerization of azobenzene mesogens, the thermal-induced stress of the monodomain LCEs film reached ∼3 MPa. The LCEs film also exhibited thermal-induced shape-memory properties. Investigation of its photo-responsive behavior further demonstrated that the monodomain LCEs film generated stress of ∼1.1 MPa while exhibited photo-induced deformation due to the trans-cis isomerization of azobenzene mesogens upon irradiation with 365 nm UV light. Finally, we observed that the monodomain LCEs film could undergo quickly photo-induced deformation and could be processed into a photo-driven gripper. After reading the article, we found that the author used 3-Bromopropan-1-ol(cas: 627-18-9Application of 627-18-9)
3-Bromopropan-1-ol(cas: 627-18-9) is used in the synthesis of fluorescent halide-sensitive quinolinium dyes, chiral, quaternary prolines through cyclization of quaternary amino acids and molten salt-polymers. It is utilized for the study of micellar media and in microemulsions based on cationic or a nonionic surfactant by reacting with phenols.Application of 627-18-9
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