Light-Mediated Reversible Assembly of Polymeric Colloids

Elizabeth Elacqua; Xiaolong Zheng; Marcus Weck

doi:10.1021/acsmacrolett.7b00539

Light-Mediated Reversible Assembly of Polymeric Colloids

Elizabeth Elacqua, Xiaolong Zheng, Marcus Weck

Chemistry

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

Abstract

This contribution highlights the functionalization of colloidal particles featuring high-symmetry patches with telechelic block copolymers and subsequent reversible self-assembly of the resulting particles into longer chain and branched structures using host-guest complexation. The 3-(trimethoxysilyl)propyl methacrylate (TPM)-based anisotropic particles, obtained through a cluster-encapsulation process, consist of poly(styrene) patches and are site-specifically functionalized with block copolymers bearing pendant viologen or azobenzene motifs. Key to the design is the engineering of heterotelechelic α-hydroxy-ω-formyl-poly(norbornene)s via ring-opening metathesis polymerization (ROMP). The block copolymers feature both main chain anchor points to the particle surface, as well as orthogonal reactive sites for cyanine dye conjugation. The polymeric particles undergo directed and reversible supramolecular assembly in the presence of the host cucurbit[8]uril.

Original language	English (US)
Pages (from-to)	1060-1065
Number of pages	6
Journal	ACS Macro Letters
Volume	6
Issue number	10
DOIs	https://doi.org/10.1021/acsmacrolett.7b00539
State	Published - Oct 17 2017

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acsmacrolett.7b00539

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title = "Light-Mediated Reversible Assembly of Polymeric Colloids",

abstract = "This contribution highlights the functionalization of colloidal particles featuring high-symmetry patches with telechelic block copolymers and subsequent reversible self-assembly of the resulting particles into longer chain and branched structures using host-guest complexation. The 3-(trimethoxysilyl)propyl methacrylate (TPM)-based anisotropic particles, obtained through a cluster-encapsulation process, consist of poly(styrene) patches and are site-specifically functionalized with block copolymers bearing pendant viologen or azobenzene motifs. Key to the design is the engineering of heterotelechelic α-hydroxy-ω-formyl-poly(norbornene)s via ring-opening metathesis polymerization (ROMP). The block copolymers feature both main chain anchor points to the particle surface, as well as orthogonal reactive sites for cyanine dye conjugation. The polymeric particles undergo directed and reversible supramolecular assembly in the presence of the host cucurbit[8]uril.",

author = "Elizabeth Elacqua and Xiaolong Zheng and Marcus Weck",

note = "Funding Information: The work is primarily supported by the Donors of the American Chemical Society Petroleum Research Fund under Grant No. 56280-ND7. We acknowledge support from the MRI program of the National Science Foundation under Award Number DMR-0923251 for the purchase of a Zeiss field emission SEM. We also acknowledge the NIH for the purchase of the Avance III-600 CPTCI-cryoprobe head (S10 Grant, OD016343). Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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doi = "10.1021/acsmacrolett.7b00539",

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AU - Weck, Marcus

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PY - 2017/10/17

Y1 - 2017/10/17

N2 - This contribution highlights the functionalization of colloidal particles featuring high-symmetry patches with telechelic block copolymers and subsequent reversible self-assembly of the resulting particles into longer chain and branched structures using host-guest complexation. The 3-(trimethoxysilyl)propyl methacrylate (TPM)-based anisotropic particles, obtained through a cluster-encapsulation process, consist of poly(styrene) patches and are site-specifically functionalized with block copolymers bearing pendant viologen or azobenzene motifs. Key to the design is the engineering of heterotelechelic α-hydroxy-ω-formyl-poly(norbornene)s via ring-opening metathesis polymerization (ROMP). The block copolymers feature both main chain anchor points to the particle surface, as well as orthogonal reactive sites for cyanine dye conjugation. The polymeric particles undergo directed and reversible supramolecular assembly in the presence of the host cucurbit[8]uril.

AB - This contribution highlights the functionalization of colloidal particles featuring high-symmetry patches with telechelic block copolymers and subsequent reversible self-assembly of the resulting particles into longer chain and branched structures using host-guest complexation. The 3-(trimethoxysilyl)propyl methacrylate (TPM)-based anisotropic particles, obtained through a cluster-encapsulation process, consist of poly(styrene) patches and are site-specifically functionalized with block copolymers bearing pendant viologen or azobenzene motifs. Key to the design is the engineering of heterotelechelic α-hydroxy-ω-formyl-poly(norbornene)s via ring-opening metathesis polymerization (ROMP). The block copolymers feature both main chain anchor points to the particle surface, as well as orthogonal reactive sites for cyanine dye conjugation. The polymeric particles undergo directed and reversible supramolecular assembly in the presence of the host cucurbit[8]uril.

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Light-Mediated Reversible Assembly of Polymeric Colloids

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