Dispersion and magnetic field-induced alignment of functionalized carbon nanotubes in liquid crystals
Source abstract
Abstract
Abstract Liquid crystal (LC)-functionalized multi-walled carbon nanotubes (MWNTs) were synthesized by substituting decyloxy and phenylcyclohexyl (PCH) mesogenic moieties into MWNT surface through covalent linkage. The LC-functionalized MWNTs (LC-MWNTs) showed good dispersion stability in ethanol as well as good miscibility in a host thermotropic nematic LC (N-LC). A polarizing optical microscope image demonstrated that the LC-MWNTs could be well dispersed in the host N-LC within 5 wt% content of LC-MWNTs without aggregation, which is ascribed to the substantial affinity between the PCH moieties and the host N-LC molecules. It was found that the LC-MWNTs in the host LC matrix could be well aligned parallel to the direction of the applied magnetic field of 5 T. Then the high order parameter of 0.46 for LC-MWNTs was obtained from the measurement of polarized Raman spectroscopy.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Liquid Crystal Research Advancements · Magnetic and Electromagnetic Effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
Show source-provided references
1. A carbon nanotube field-emission electron source10.1126/science.270.5239.1179 ↗
2. Carbon nanotubes–the route toward applications10.1126/science.1060928 ↗
3. Aligned carbon nanotube arrays formed by cutting a polymer resin-nanotube composite10.1126/science.265.5176.1212 ↗
4. Large-scale synthesis of aligned carbon nanotubes10.1126/science.274.5293.1701 ↗
5. Controlled production of aligned-nanotube bundles10.1038/40369 ↗
6. Macroscopic fibers and ribbons of oriented carbon nanotubes10.1126/science.290.5495.1331 ↗
7. Electroactive shape-memory polyurethane composites incorporating carbon nanotubes10.1002/marc.200400492 ↗
8. Polymeric nanocomposites of polyurethane block copolymers and functionalized multi-walled carbon nanotubes as crosslinkers10.1002/marc.200500658 ↗
9. Fabrication of aligned carbon nanotube-filled rubber composite10.1016/j.scriptamat.2005.09.014 ↗
10. Helical polyacetylene synthesized with a chiral nematic reaction field10.1126/science.282.5394.1683 ↗
11. Highly twisted helical polyacetylene with morphology free from the bundle of fibrils synthesized in chiral nematic liquid crystal reaction field10.1021/ja070701x ↗
12. Helical polyacetylenes synthesized in helical sense and pitch controllable chiral nematic liquid crystal with unprecedented temperature dependence10.1021/ma0703655 ↗
13. From helical polyacetylene to helical graphite: synthesis in the chiral nematic liquid crystal field and morphology-retaining carbonisation10.1039/b907990b ↗
14. Self-assembly of discotic liquid crystal porphyrin into more controllable ordered nanostructure mediated by fluorophobic effect10.1080/02678290902846611 ↗
15. Electron- or hole-transporting nature selected by side-chain-directed π-stacking geometry: liquid crystalline fused metalloporphyrin dimers10.1021/ja201272t ↗
16. Stacking of conical molecules with a fullerene apex into polar columns in crystals and liquid crystals10.1038/nature01110 ↗
17. Octupole-like supramolecular aggregates of conical iron fullerene complexes into a three-dimensional liquid crystalline lattice10.1021/ja1073933 ↗
18. Columnar mesophases of alkylated hexa-peri-hexabenzocorconenes with remarkably large phase widths10.1002/adma.19960080613 ↗
19. Self-organized discotic liquid crystals for high-efficiency organic photovoltaics10.1126/science.293.5532.1119 ↗
20. Star-like substituted hexaarylbenzenes: synthesis and mesomorphic properties10.1039/b101163o ↗
21. Negative thermal expansion in discotic liquid crystals of nanographenes10.1002/adma.200903264 ↗
22. Organizing carbon nanotubes with liquid crystals10.1021/nl025694j ↗
23. Aligning and reorienting carbon nanotubes with nematic liquid crystals10.1002/adma.200306196 ↗
24. Liquid crystal–carbon nanotubes dispersion10.1063/1.1850606 ↗
25. Magnetically steered liquid crystal-nanotube switch10.1063/1.2140069 ↗
26. Paramagnetic defects and amorphous network reconstruction of magnetron sputtered a-SiO2:Ge films10.1063/1.2769341 ↗
27. Electroactive superelongation of carbon nanotube aggregates in liquid crystal medium10.1021/nl070116u ↗
28. Properties of carbon nanotubes fibers spun from DNA-stabilized dispersions10.1002/adfm.200304500 ↗
29. Liquid crystals of DNA-stabilized carbon nanotubes10.1002/adma.200401741 ↗
30. Phase behavior of nanotube suspensions: from attraction induced percolation to liquid crystalline phases10.1039/b607378f ↗
31. Liquid crystal behavior of single-walled carbon nanotubes dispersed in biological hyaluronic acid solutions10.1021/ja072160h ↗
32. Preparation and characterization of a carbon nanotube-lyotropic liquid crystal composite10.1021/la052746m ↗
33. Nanotube alignment using lyotropic liquid crystals10.1002/adma.200600889 ↗
34. Carbon nanotubes in liquid crystals10.1039/b802707b ↗
35. Cholesteric and nematic liquid crystalline phase behavior of double-stranded DNA stabilized single-walled carbon nanotube dispersions10.1021/nn103225r ↗
36. Isotropic-nematic phase transition of dispersions of multiwall carbon nanotubes10.1021/ma047691u ↗
37. True solutions of single-walled carbon nanotubes for assembly into macroscopic materials10.1038/nnano.2009.302 ↗
38. Spontaneous macroscopic carbon nanotube alignment via colloidal suspension in hexagonal columnar lyotropic liquid crystals10.1039/b715683a ↗
39. Macroscopic-scale carbon nanotube alignment via self-assembly in lyotropic liquid crystals10.1016/j.synthmet.2009.08.021 ↗
40. A tunable carbon nanotube polarizer10.1088/0957-4484/21/40/405202 ↗
41. Carbon nanotubes in liquid crystals as versatile functional materials10.1002/pssb.200776205 ↗
42. Toward efficient dispersion of carbon nanotubes in thermotropic liquid crystals10.1002/adfm.201000539 ↗
43. Tailor-designed polyphilic promoters for stabilizing dispersions of carbon nanotubes in liquid crystals10.1039/c0cc02353a ↗
44. Dissolving and aligning carbon nanotubes in thermotropic liquid crystals10.1021/la202790a ↗
45. Simple method for the esterification of carboxylic acid10.1002/anie.197805221 ↗
46. Transferability of the bond polarizabilities: from saturated hydrocarbons to diamond10.1016/0038-1098(82)90993-0 ↗
47. Macroscopically aligned helical polyacetylene synthesized in magnetically oriented chiral nematic liquid crystal field10.1021/ma1009726 ↗
48. Disubstituted liquid crystalline polyacetylene derivatives that exhibit linearly polarized blue and green emissions10.1021/ma201229g ↗
49. Raman spectroscopy of carbon nanotubes10.1016/j.physrep.2004.10.006 ↗
50. Double resonance Raman spectroscopy of single-wall carbon nanotubes10.1088/1367-2630/5/1/157 ↗
51. Polarized Raman spectroscopy on isolated sinlge-wall carbon nanotubes10.1103/PhysRevLett.85.5436 ↗
52. Polarized resonant Raman study of isolated single-walled carbon nanotubes: symmetry selection rules dipolar and multipolar antenna effects10.1103/PhysRevB.65.121402 ↗
53. Diamagnetism and orientational order of nematic liquid crystals10.1051/jphys:01982004302036100 ↗
54. Anisotropic magnetic susceptibility of multiwalled carbon nanotubes10.1063/1.126061 ↗