Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles

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 wer...

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Veröffentlicht in:Chinese chemical letters 2011-11, Vol.22 (11), p.1375-1378
Hauptverfasser: Cheng, Zhi Yu, Ren, Bi Ye, He, Shu Ying, Liu, Xin Xing, Tong, Zhen
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container_issue 11
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creator Cheng, Zhi Yu
Ren, Bi Ye
He, Shu Ying
Liu, Xin Xing
Tong, Zhen
description 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 andΦ_h phases,respectively.This finding is significant for design of functional nanostructures based on the ionic complexation of polymers and amphiphiles.
doi_str_mv 10.1016/j.cclet.2011.05.024
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subjects Dendritic amphiphile
Ionic thermotropic liquid crystal
Poly(allylamine hydrochloride)
Polymer–amphiphile complex
两亲聚合物
双亲
复合物
离子液体
纳米结构
线性聚合物
结晶

title Mesomorphous structure change by tail chain number in ionic liquid crystalline complexes of linear polymer and amphiphiles
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