Nematic ordering of SWNT in meso-structured thin liquid films of polystyrenesulfonate

Racheli Itzhak-Cohen; Einat Nativ-Roth; Yael Levi-Kalisman; Elinor Josef; Igal Szleifer; Rachel Yerushalmi-Rozen

doi:10.1021/la503287q

Nematic ordering of SWNT in meso-structured thin liquid films of polystyrenesulfonate

Racheli Itzhak-Cohen, Einat Nativ-Roth, Yael Levi-Kalisman, Elinor Josef, Igal Szleifer, Rachel Yerushalmi-Rozen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The formation of nematic-like islands of single-walled carbon nanotubes (SWNT) in polystyrenesulfonate (PSS) dispersions confined into nanometrically thin films is reported. The SWNT are observed to assemble into orientationally ordered phases, where the intertube distance, as measured via transmission electron microscopy at cryogenic temperatures, matches the polyelectrolyte's bulk correlation length deduced from X-ray scattering. The micrometers-long islands of orientationally ordered carbon nanotubes are observed in both SWNT and double-walled carbon nanotubes (DWNT) but not in specimens prepared from similar dispersions of multiwalled carbon nanotubes (MWNT). These observations, together with relaxation and rheological experiments, suggest that the orientational ordering may result from coupling between confinement of the polymer-wrapped SWNT and DWNT and the microstructure of the solvated polyelectrolyte. (Figure Presented).

Original language	English
Pages (from-to)	14963-14970
Number of pages	8
Journal	Langmuir
Volume	30
Issue number	49
DOIs	https://doi.org/10.1021/la503287q
State	Published - 16 Dec 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 American Chemical Society.

Access to Document

10.1021/la503287q

Cite this

@article{b7848c4ee45b42ea9ffb62c433944f68,

title = "Nematic ordering of SWNT in meso-structured thin liquid films of polystyrenesulfonate",

abstract = "The formation of nematic-like islands of single-walled carbon nanotubes (SWNT) in polystyrenesulfonate (PSS) dispersions confined into nanometrically thin films is reported. The SWNT are observed to assemble into orientationally ordered phases, where the intertube distance, as measured via transmission electron microscopy at cryogenic temperatures, matches the polyelectrolyte's bulk correlation length deduced from X-ray scattering. The micrometers-long islands of orientationally ordered carbon nanotubes are observed in both SWNT and double-walled carbon nanotubes (DWNT) but not in specimens prepared from similar dispersions of multiwalled carbon nanotubes (MWNT). These observations, together with relaxation and rheological experiments, suggest that the orientational ordering may result from coupling between confinement of the polymer-wrapped SWNT and DWNT and the microstructure of the solvated polyelectrolyte. (Figure Presented).",

author = "Racheli Itzhak-Cohen and Einat Nativ-Roth and Yael Levi-Kalisman and Elinor Josef and Igal Szleifer and Rachel Yerushalmi-Rozen",

note = "Publisher Copyright: {\textcopyright} 2014 American Chemical Society.",

year = "2014",

month = dec,

day = "16",

doi = "10.1021/la503287q",

language = "אנגלית",

volume = "30",

pages = "14963--14970",

journal = "Langmuir",

issn = "0743-7463",

publisher = "American Chemical Society",

number = "49",

}

TY - JOUR

T1 - Nematic ordering of SWNT in meso-structured thin liquid films of polystyrenesulfonate

AU - Itzhak-Cohen, Racheli

AU - Nativ-Roth, Einat

AU - Levi-Kalisman, Yael

AU - Josef, Elinor

AU - Szleifer, Igal

AU - Yerushalmi-Rozen, Rachel

PY - 2014/12/16

Y1 - 2014/12/16

N2 - The formation of nematic-like islands of single-walled carbon nanotubes (SWNT) in polystyrenesulfonate (PSS) dispersions confined into nanometrically thin films is reported. The SWNT are observed to assemble into orientationally ordered phases, where the intertube distance, as measured via transmission electron microscopy at cryogenic temperatures, matches the polyelectrolyte's bulk correlation length deduced from X-ray scattering. The micrometers-long islands of orientationally ordered carbon nanotubes are observed in both SWNT and double-walled carbon nanotubes (DWNT) but not in specimens prepared from similar dispersions of multiwalled carbon nanotubes (MWNT). These observations, together with relaxation and rheological experiments, suggest that the orientational ordering may result from coupling between confinement of the polymer-wrapped SWNT and DWNT and the microstructure of the solvated polyelectrolyte. (Figure Presented).

AB - The formation of nematic-like islands of single-walled carbon nanotubes (SWNT) in polystyrenesulfonate (PSS) dispersions confined into nanometrically thin films is reported. The SWNT are observed to assemble into orientationally ordered phases, where the intertube distance, as measured via transmission electron microscopy at cryogenic temperatures, matches the polyelectrolyte's bulk correlation length deduced from X-ray scattering. The micrometers-long islands of orientationally ordered carbon nanotubes are observed in both SWNT and double-walled carbon nanotubes (DWNT) but not in specimens prepared from similar dispersions of multiwalled carbon nanotubes (MWNT). These observations, together with relaxation and rheological experiments, suggest that the orientational ordering may result from coupling between confinement of the polymer-wrapped SWNT and DWNT and the microstructure of the solvated polyelectrolyte. (Figure Presented).

UR - http://www.scopus.com/inward/record.url?scp=84918823042&partnerID=8YFLogxK

U2 - 10.1021/la503287q

DO - 10.1021/la503287q

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

C2 - 25418203

AN - SCOPUS:84918823042

SN - 0743-7463

VL - 30

SP - 14963

EP - 14970

JO - Langmuir

JF - Langmuir

IS - 49

ER -

Nematic ordering of SWNT in meso-structured thin liquid films of polystyrenesulfonate

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this