Solvent-induced morphological transition in core-cross-linked block copolymer micelles

H. Huang; R. Hoogenboom; M.A.M. Leenen; P. Guillet; A.M. Jonas; U.S. Schubert; J.M.W. Gohy

doi:10.1021/ja057762k

Solvent-induced morphological transition in core-cross-linked block copolymer micelles

H. Huang, R. Hoogenboom, M.A.M. Leenen, P. Guillet, A.M. Jonas, U.S. Schubert, J.M.W. Gohy

Chemical Engineering and Chemistry

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

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Abstract

Microwave-assisted polymerization has been utilized to synthesize amphiphilic poly(2-ethyl-2-oxazoline-block-2-"soy alkyl"-2-oxazoline) diblock copolymers (PEtOx-PSoyOx). The amphiphilic block copolymers have been used to prepare aqueous spherical micelles consisting of a PEtOx corona and a PSoyOx core, which have been further cross-linked by UV irradiation. The morphology of these cross-linked micelles has been shown to reversibly change from spheres to short rods referred to as rice grains whenever the micelles were transferred from water into acetone, a nonselective solvent for the constituent blocks. This morphological transition has been attributed to the swelling of the slightly cross-linked PSoyOx core.

Original language	English
Pages (from-to)	3784-3788
Journal	Journal of the American Chemical Society
Volume	128
Issue number	11
DOIs	https://doi.org/10.1021/ja057762k
Publication status	Published - 2006

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title = "Solvent-induced morphological transition in core-cross-linked block copolymer micelles",

abstract = "Microwave-assisted polymerization has been utilized to synthesize amphiphilic poly(2-ethyl-2-oxazoline-block-2-{"}soy alkyl{"}-2-oxazoline) diblock copolymers (PEtOx-PSoyOx). The amphiphilic block copolymers have been used to prepare aqueous spherical micelles consisting of a PEtOx corona and a PSoyOx core, which have been further cross-linked by UV irradiation. The morphology of these cross-linked micelles has been shown to reversibly change from spheres to short rods referred to as rice grains whenever the micelles were transferred from water into acetone, a nonselective solvent for the constituent blocks. This morphological transition has been attributed to the swelling of the slightly cross-linked PSoyOx core.",

author = "H. Huang and R. Hoogenboom and M.A.M. Leenen and P. Guillet and A.M. Jonas and U.S. Schubert and J.M.W. Gohy",

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T1 - Solvent-induced morphological transition in core-cross-linked block copolymer micelles

AU - Huang, H.

AU - Hoogenboom, R.

AU - Leenen, M.A.M.

AU - Guillet, P.

AU - Jonas, A.M.

AU - Schubert, U.S.

AU - Gohy, J.M.W.

PY - 2006

Y1 - 2006

N2 - Microwave-assisted polymerization has been utilized to synthesize amphiphilic poly(2-ethyl-2-oxazoline-block-2-"soy alkyl"-2-oxazoline) diblock copolymers (PEtOx-PSoyOx). The amphiphilic block copolymers have been used to prepare aqueous spherical micelles consisting of a PEtOx corona and a PSoyOx core, which have been further cross-linked by UV irradiation. The morphology of these cross-linked micelles has been shown to reversibly change from spheres to short rods referred to as rice grains whenever the micelles were transferred from water into acetone, a nonselective solvent for the constituent blocks. This morphological transition has been attributed to the swelling of the slightly cross-linked PSoyOx core.

AB - Microwave-assisted polymerization has been utilized to synthesize amphiphilic poly(2-ethyl-2-oxazoline-block-2-"soy alkyl"-2-oxazoline) diblock copolymers (PEtOx-PSoyOx). The amphiphilic block copolymers have been used to prepare aqueous spherical micelles consisting of a PEtOx corona and a PSoyOx core, which have been further cross-linked by UV irradiation. The morphology of these cross-linked micelles has been shown to reversibly change from spheres to short rods referred to as rice grains whenever the micelles were transferred from water into acetone, a nonselective solvent for the constituent blocks. This morphological transition has been attributed to the swelling of the slightly cross-linked PSoyOx core.

U2 - 10.1021/ja057762k

DO - 10.1021/ja057762k

M3 - Article

C2 - 16536553

SN - 0002-7863

VL - 128

SP - 3784

EP - 3788

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 11

ER -

Solvent-induced morphological transition in core-cross-linked block copolymer micelles

Abstract

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