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Volumn 122, Issue 13, 2000, Pages 3053-3062

Smectic liquid-crystalline phases of quaternary group VA (especially phosphonium) salts with three equivalent long n-alkyl chains. How do layered assemblies form in liquid-crystalline and crystalline phases?

Author keywords

[No Author keywords available]

Indexed keywords

ALKYL GROUP; AMPHOPHILE; METHYL GROUP; PHOSPHONIUM DERIVATIVE; QUATERNARY AMMONIUM DERIVATIVE;

EID: 0034607290     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja994055g     Document Type: Article
Times cited : (129)

References (60)
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    • In this work, the arbitrary definition of a "long chain" is ≥ 10 carbon atoms.
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    • 6 we assigned the liquid-crystalline phase of methyltri-n-octadecylammonium iodide as nematic based on its ability to be aligned by a strong magnetic field. That assignment is incorrect for the neat material. The phase designations of the ammonium salts are based on their optical micrographs and XRD patterns (which are like those of the nPmA salts). They will not be discussed here except in comparative terms.
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