引用本文:
Zhi Yu Cheng, Bi Ye Ren, Shu Ying He, Xin Xing Liu, Zhen Tong. Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles[J]. Chinese Chemical Letters,
2011, 22(11): 1375-1378.
doi:
10.1016/j.cclet.2011.05.024
Citation: Zhi Yu Cheng, Bi Ye Ren, Shu Ying He, Xin Xing Liu, Zhen Tong. Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles[J]. Chinese Chemical Letters, 2011, 22(11): 1375-1378. doi: 10.1016/j.cclet.2011.05.024
Citation: Zhi Yu Cheng, Bi Ye Ren, Shu Ying He, Xin Xing Liu, Zhen Tong. Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles[J]. Chinese Chemical Letters, 2011, 22(11): 1375-1378. doi: 10.1016/j.cclet.2011.05.024
Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles
摘要:
Three polymer-amphiphile complexes were prepared by combining poly (allylamine hydrochloride) (PAH) with the potassium salt of mono-, di-, and trisubstituted benzoic acid dendrons (4-octyloxybenzoic acid, 3, 5-dioctyloxybenzoic acid, and 3, 4, 5-trioctyloxybenzoic acid). The solid structure and properties were monitored with FT-IR, XRD, TG, DSC, and polarized optical microscope (POM). Difference in the tail chain number of the dendritic amphiphile induced two different mesomorphous structures:lamella for the mono-, disubstituted dendron containing complexes and hexagonal column for the trisubstituted dendron containing complexes. These corresponded to the ionic thermotropic liquid crystal SmA and φh phases, respectively. This finding is significant for design of functional nanostructures based on the ionic complexation of polymers and amphiphiles.
English
Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles
Abstract:
Three polymer-amphiphile complexes were prepared by combining poly(allylamine hydrochloride) (PAH) with the potassium salt of mono-, di-, and trisubstituted benzoic acid dendrons (4-octyloxybenzoic acid, 3, 5-dioctyloxybenzoic acid, and 3, 4, 5-trioctyloxybenzoic acid). The solid structure and properties were monitored with FT-IR, XRD, TG, DSC, and polarized optical microscope (POM). Difference in the tail chain number of the dendritic amphiphile induced two different mesomorphous structures:lamella for the mono-, disubstituted dendron containing complexes and hexagonal column for the trisubstituted dendron containing complexes. These corresponded to the ionic thermotropic liquid crystal SmA and φh phases, respectively. This finding is significant for design of functional nanostructures based on the ionic complexation of polymers and amphiphiles.
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