Facile postpolymerization end-modification of RAFT polymers

Jason M. Spruell; Benjamin A. Levy; Alexander Sutherland; William R. Dichtel; Joy Y. Cheng; J. Fraser Stoddart; Alshakim Nelson

doi:10.1002/pola.23138

Facile postpolymerization end-modification of RAFT polymers

Jason M. Spruell, Benjamin A. Levy, Alexander Sutherland, William R. Dichtel, Joy Y. Cheng, J. Fraser Stoddart, Alshakim Nelson^*

^*Corresponding author for this work

Chemistry

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

85 Scopus citations

Abstract

One-pot methods for the end-group postpolymerization modification of reversible addition fragmentation chain transfer (RAFT) derived polymers were investigated. Dithioester-terminated polymers were transformed into ω-functionalized polymers through conjugate addition of a variety of acrylates with an intermediate thiol. These methods provide a versatile means of introducing a variety of functionalities onto the polymer terminus, while simultaneously removing the residual dithiobenzoate group. A series of functionalized polymethylmethacrylate-b-polystyrene (PMMA-b-PS) polymers were synthesized utilizing the developed methods to probe the effect of charged end groups on diblock copolymer phase separation in thin films.

Original language	English (US)
Pages (from-to)	346-356
Number of pages	11
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	47
Issue number	2
DOIs	https://doi.org/10.1002/pola.23138
State	Published - Jan 15 2009

Keywords

Block copolymer
Phase separation
Postpolymerization modification
Reduction/conjugation
Reversible addition fragmentation chain transfer (RAFT)

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1002/pola.23138

Cite this

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abstract = "One-pot methods for the end-group postpolymerization modification of reversible addition fragmentation chain transfer (RAFT) derived polymers were investigated. Dithioester-terminated polymers were transformed into ω-functionalized polymers through conjugate addition of a variety of acrylates with an intermediate thiol. These methods provide a versatile means of introducing a variety of functionalities onto the polymer terminus, while simultaneously removing the residual dithiobenzoate group. A series of functionalized polymethylmethacrylate-b-polystyrene (PMMA-b-PS) polymers were synthesized utilizing the developed methods to probe the effect of charged end groups on diblock copolymer phase separation in thin films.",

keywords = "Block copolymer, Phase separation, Postpolymerization modification, Reduction/conjugation, Reversible addition fragmentation chain transfer (RAFT)",

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AU - Spruell, Jason M.

AU - Levy, Benjamin A.

AU - Sutherland, Alexander

AU - Dichtel, William R.

AU - Cheng, Joy Y.

AU - Stoddart, J. Fraser

AU - Nelson, Alshakim

PY - 2009/1/15

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N2 - One-pot methods for the end-group postpolymerization modification of reversible addition fragmentation chain transfer (RAFT) derived polymers were investigated. Dithioester-terminated polymers were transformed into ω-functionalized polymers through conjugate addition of a variety of acrylates with an intermediate thiol. These methods provide a versatile means of introducing a variety of functionalities onto the polymer terminus, while simultaneously removing the residual dithiobenzoate group. A series of functionalized polymethylmethacrylate-b-polystyrene (PMMA-b-PS) polymers were synthesized utilizing the developed methods to probe the effect of charged end groups on diblock copolymer phase separation in thin films.

AB - One-pot methods for the end-group postpolymerization modification of reversible addition fragmentation chain transfer (RAFT) derived polymers were investigated. Dithioester-terminated polymers were transformed into ω-functionalized polymers through conjugate addition of a variety of acrylates with an intermediate thiol. These methods provide a versatile means of introducing a variety of functionalities onto the polymer terminus, while simultaneously removing the residual dithiobenzoate group. A series of functionalized polymethylmethacrylate-b-polystyrene (PMMA-b-PS) polymers were synthesized utilizing the developed methods to probe the effect of charged end groups on diblock copolymer phase separation in thin films.

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KW - Postpolymerization modification

KW - Reduction/conjugation

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Facile postpolymerization end-modification of RAFT polymers

Abstract

Keywords

ASJC Scopus subject areas

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