151197-61-4

Basic information

• Product Name: Benzene, 1-(4-pentylcyclohexyl)-4-(4-pentynyloxy)-
• CAS NO: 151197-61-4
• Molecular Formula: C22H32O
• Molecular Weight: 312.495
• Mol File: 151197-61-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzene, 1-(4-pentylcyclohexyl)-4-(4-pentynyloxy)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(4-pentylcyclohexyl)-4-(4-pentynyloxy)-(151197-61-4)
• EPA Substance Registry System: Benzene, 1-(4-pentylcyclohexyl)-4-(4-pentynyloxy)-(151197-61-4)

Safety Data

• Hazardous Substances Data: 151197-61-4(Hazardous Substances Data)

Upstream product

• 82575-69-7 4-(4'-pentyl-trans-cyclohexyl)phenol 
• 14267-92-6 1-chloro-4-pentyne 

Relevant articles and documents

Synthesis and properties of liquid-crystalline-conjugated polymers

We have synthesized novel liquid-crystalline (LC)-conducting polymers by introducing LC groups into acetylene monomers and polymerizing them with Ziegler-Natta, metathesis, and rhodium-based catalysts. All polymers prepared were soluble in organic solvents and had a thermotropic liquid crystallinity characterized with fan-shaped texture in polarizing optical microscopy. Phase transitions and the corresponding enthalpy changes were also evaluated by means of differential scanning calorimeter (DSC). High-order structures of the polymers were investigated by means of X-ray diffraction (XRD) analyses. XRD measurements showed that the polymers had layered structures in the LC state to give smectic A phases, which is in agreement with the results from the polarizing optical microscope. We found that the LC side chains alternate on both sides of the polyene chain, giving rise to a stereoregular sequence, such as head-head-tail-tail linkage. Macroscopic alignments of the polymers were performed in the liquid-crystalline phase by shear stress or a magnetic force field of 0.7-1.0 Tesla, which resulted in an enhancement by two orders of magnitude in the electrical conductivity of iodine-doped cast films. Orientation behaviors of the polymers as well as the monomers were investigated using fused-state 13CNMR measurements with proton dipolar decoupling. Analysis of chemical shift tensors was also carried out to evaluate the order parameter and shielding anisotropy in the LC phase. As a result, we demonstrated that LC-conjugated polymers uniaxially aligned due to the magnetically forced alignment of the LC side-chain, giving rise to a monodomain structure.