Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles: Evidence of secondary aggregation

Oren Regev; Jean François Gohy; Bas G.G. Lohmeijer; Sunil K. Varshney; Dominique H.W. Hubert; Peter M. Frederik; Ulrich S. Schubert

doi:10.1007/s00396-003-0975-1

Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles: Evidence of secondary aggregation

Oren Regev
, Jean François Gohy
, Bas G.G. Lohmeijer
, Sunil K. Varshney
, Dominique H.W. Hubert
, Peter M. Frederik
, Ulrich S. Schubert

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

40 Scopus citations

Abstract

Metallo-supramolecular diblock copolymers consisting of a polystyrene (PS) block connected to a poly(ethylene oxide) (PEO) block by a bis(terpyridine)ruthenium complex (PS₂₀-[Ru]-PEO_y) were used to prepare aqueous micelles. The length of the PS block was kept constant, while two PEOs of different molecular weight were used. The resulting hydrated micelles and aggregates were characterized by a combination of cryogenic transmission electron microscopy (cryo-TEM) and dynamic light scattering measurements. The results were compared to those obtained for a covalent counterpart (PS₂₂-b-PEO₇₀). Cryogenic transmission electron microscopy allowed visualization of the PS core of the micelles. Moreover, the aggregates result from clustering of individual micelles.

Original language	English
Pages (from-to)	407-411
Number of pages	5
Journal	Colloid and Polymer Science
Volume	282
Issue number	4
DOIs	https://doi.org/10.1007/s00396-003-0975-1
State	Published - 1 Feb 2004
Externally published	Yes

Keywords

Block copolymers
Cryogenic transmission electron microscopy
Dynamic light scattering
Metallo-supramolecular chemistry
Micelles

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Polymers and Plastics
Colloid and Surface Chemistry
Materials Chemistry

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10.1007/s00396-003-0975-1

Cite this

Regev, O., Gohy, J. F., Lohmeijer, B. G. G., Varshney, S. K., Hubert, D. H. W., Frederik, P. M., & Schubert, U. S. (2004). Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles: Evidence of secondary aggregation. Colloid and Polymer Science, 282(4), 407-411. https://doi.org/10.1007/s00396-003-0975-1

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title = "Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles: Evidence of secondary aggregation",

abstract = "Metallo-supramolecular diblock copolymers consisting of a polystyrene (PS) block connected to a poly(ethylene oxide) (PEO) block by a bis(terpyridine)ruthenium complex (PS20-[Ru]-PEOy) were used to prepare aqueous micelles. The length of the PS block was kept constant, while two PEOs of different molecular weight were used. The resulting hydrated micelles and aggregates were characterized by a combination of cryogenic transmission electron microscopy (cryo-TEM) and dynamic light scattering measurements. The results were compared to those obtained for a covalent counterpart (PS22-b-PEO70). Cryogenic transmission electron microscopy allowed visualization of the PS core of the micelles. Moreover, the aggregates result from clustering of individual micelles.",

keywords = "Block copolymers, Cryogenic transmission electron microscopy, Dynamic light scattering, Metallo-supramolecular chemistry, Micelles",

author = "Oren Regev and Gohy, \{Jean Fran{\c c}ois\} and Lohmeijer, \{Bas G.G.\} and Varshney, \{Sunil K.\} and Hubert, \{Dominique H.W.\} and Frederik, \{Peter M.\} and Schubert, \{Ulrich S.\}",

year = "2004",

month = feb,

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doi = "10.1007/s00396-003-0975-1",

language = "English",

volume = "282",

pages = "407--411",

journal = "Colloid and Polymer Science",

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Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles: Evidence of secondary aggregation. / Regev, Oren; Gohy, Jean François; Lohmeijer, Bas G.G. et al.
In: Colloid and Polymer Science, Vol. 282, No. 4, 01.02.2004, p. 407-411.

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

TY - JOUR

T1 - Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles

T2 - Evidence of secondary aggregation

AU - Regev, Oren

AU - Gohy, Jean François

AU - Lohmeijer, Bas G.G.

AU - Varshney, Sunil K.

AU - Hubert, Dominique H.W.

AU - Frederik, Peter M.

AU - Schubert, Ulrich S.

PY - 2004/2/1

Y1 - 2004/2/1

N2 - Metallo-supramolecular diblock copolymers consisting of a polystyrene (PS) block connected to a poly(ethylene oxide) (PEO) block by a bis(terpyridine)ruthenium complex (PS20-[Ru]-PEOy) were used to prepare aqueous micelles. The length of the PS block was kept constant, while two PEOs of different molecular weight were used. The resulting hydrated micelles and aggregates were characterized by a combination of cryogenic transmission electron microscopy (cryo-TEM) and dynamic light scattering measurements. The results were compared to those obtained for a covalent counterpart (PS22-b-PEO70). Cryogenic transmission electron microscopy allowed visualization of the PS core of the micelles. Moreover, the aggregates result from clustering of individual micelles.

AB - Metallo-supramolecular diblock copolymers consisting of a polystyrene (PS) block connected to a poly(ethylene oxide) (PEO) block by a bis(terpyridine)ruthenium complex (PS20-[Ru]-PEOy) were used to prepare aqueous micelles. The length of the PS block was kept constant, while two PEOs of different molecular weight were used. The resulting hydrated micelles and aggregates were characterized by a combination of cryogenic transmission electron microscopy (cryo-TEM) and dynamic light scattering measurements. The results were compared to those obtained for a covalent counterpart (PS22-b-PEO70). Cryogenic transmission electron microscopy allowed visualization of the PS core of the micelles. Moreover, the aggregates result from clustering of individual micelles.

KW - Block copolymers

KW - Cryogenic transmission electron microscopy

KW - Dynamic light scattering

KW - Metallo-supramolecular chemistry

KW - Micelles

UR - https://www.scopus.com/pages/publications/2542606819

U2 - 10.1007/s00396-003-0975-1

DO - 10.1007/s00396-003-0975-1

M3 - Article

AN - SCOPUS:2542606819

SN - 0303-402X

VL - 282

SP - 407

EP - 411

JO - Colloid and Polymer Science

JF - Colloid and Polymer Science

IS - 4

ER -

Dynamic light scattering and cryogenic transmission electron microscopy investigations on metallo-supramolecular aqueous micelles: Evidence of secondary aggregation

Abstract

Keywords

ASJC Scopus subject areas

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