The intercalation of β-carotene into the organophilic interlayer space of dialkyldimethylammonium-montmorillonites

Norishige Kakegawa, Makoto Ogawa

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The intercalation of β-carotene into the hydrophobic interlayer spaces of montmorillonite modified with dialkyldimethylammonium cations was investigated. The organophilic montmorillonites were dispersed in a chloroform solution of β-carotene and the suspensions were casted on transparent substrates to prepare oriented films. The XRD patterns of the products showed successful intercalation of β-carotene into the interlayer spaces of the organophilic montmorillonites. The visible absorption spectra of the products revealed that the adsorbed β-carotene molecules exist as monomeric species, even when the added amounts of β-carotene were very high. Photodegradation of β-carotene molecules was suppressed by the intercalation.

Original languageEnglish
Pages (from-to)137-144
Number of pages8
JournalApplied Clay Science
Volume22
Issue number3
DOIs
Publication statusPublished - 2002 Dec

Fingerprint

Carotenoids
Intercalation
photodegradation
absorption spectrum
chloroform
montmorillonite
cation
X-ray diffraction
substrate
Bentonite
Molecules
Photodegradation
Chloroform
product
Cations
Absorption spectra
Suspensions
Substrates

Keywords

  • β-carotene
  • Intercalation
  • Montmorillonite
  • Nanocomposite
  • Organophilic clay

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geology

Cite this

The intercalation of β-carotene into the organophilic interlayer space of dialkyldimethylammonium-montmorillonites. / Kakegawa, Norishige; Ogawa, Makoto.

In: Applied Clay Science, Vol. 22, No. 3, 12.2002, p. 137-144.

Research output: Contribution to journalArticle

@article{471fc78d43d9475baaaaec7059e3f930,
title = "The intercalation of β-carotene into the organophilic interlayer space of dialkyldimethylammonium-montmorillonites",
abstract = "The intercalation of β-carotene into the hydrophobic interlayer spaces of montmorillonite modified with dialkyldimethylammonium cations was investigated. The organophilic montmorillonites were dispersed in a chloroform solution of β-carotene and the suspensions were casted on transparent substrates to prepare oriented films. The XRD patterns of the products showed successful intercalation of β-carotene into the interlayer spaces of the organophilic montmorillonites. The visible absorption spectra of the products revealed that the adsorbed β-carotene molecules exist as monomeric species, even when the added amounts of β-carotene were very high. Photodegradation of β-carotene molecules was suppressed by the intercalation.",
keywords = "β-carotene, Intercalation, Montmorillonite, Nanocomposite, Organophilic clay",
author = "Norishige Kakegawa and Makoto Ogawa",
year = "2002",
month = "12",
doi = "10.1016/S0169-1317(02)00145-X",
language = "English",
volume = "22",
pages = "137--144",
journal = "Applied Clay Science",
issn = "0169-1317",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - The intercalation of β-carotene into the organophilic interlayer space of dialkyldimethylammonium-montmorillonites

AU - Kakegawa, Norishige

AU - Ogawa, Makoto

PY - 2002/12

Y1 - 2002/12

N2 - The intercalation of β-carotene into the hydrophobic interlayer spaces of montmorillonite modified with dialkyldimethylammonium cations was investigated. The organophilic montmorillonites were dispersed in a chloroform solution of β-carotene and the suspensions were casted on transparent substrates to prepare oriented films. The XRD patterns of the products showed successful intercalation of β-carotene into the interlayer spaces of the organophilic montmorillonites. The visible absorption spectra of the products revealed that the adsorbed β-carotene molecules exist as monomeric species, even when the added amounts of β-carotene were very high. Photodegradation of β-carotene molecules was suppressed by the intercalation.

AB - The intercalation of β-carotene into the hydrophobic interlayer spaces of montmorillonite modified with dialkyldimethylammonium cations was investigated. The organophilic montmorillonites were dispersed in a chloroform solution of β-carotene and the suspensions were casted on transparent substrates to prepare oriented films. The XRD patterns of the products showed successful intercalation of β-carotene into the interlayer spaces of the organophilic montmorillonites. The visible absorption spectra of the products revealed that the adsorbed β-carotene molecules exist as monomeric species, even when the added amounts of β-carotene were very high. Photodegradation of β-carotene molecules was suppressed by the intercalation.

KW - β-carotene

KW - Intercalation

KW - Montmorillonite

KW - Nanocomposite

KW - Organophilic clay

UR - http://www.scopus.com/inward/record.url?scp=0036890718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036890718&partnerID=8YFLogxK

U2 - 10.1016/S0169-1317(02)00145-X

DO - 10.1016/S0169-1317(02)00145-X

M3 - Article

VL - 22

SP - 137

EP - 144

JO - Applied Clay Science

JF - Applied Clay Science

SN - 0169-1317

IS - 3

ER -