One-pot synthesis of grafted brush copolymers via a chain-growth radical/oxidative dual polymerization system

Patakamuri Govindaiah, Yong Seok Kim, Jae Keun Hong, Jung Hyun Kim, In Woo Cheong

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This article describes the facile synthesis of grafted brush copolymers via the combination of metal-catalyzed chain-growth radical polymerization and oxidative polymerization, using a dual functional monomer. The most significant finding was the possibility of performing free-radical polymerization and oxidative polymerization in a single step, using copper bromide as a recyclable catalyst. Cu+ initiated the radical polymerization via a chain growth mechanism, and Cu2+ initiated the oxidative polymerization, leading to grafted brush copolymers in which π-conjugated polymers formed the main chains and poly(styrene sulfonate) (PSS) formed the high-density brushes. Nuclear-magnetic-resonance and Fourier-transform-infrared spectroscopic analyses revealed the formation of poly(thiophene)-co-poly(styrene sulfonate) (PTh-co-PSS) and poly(3,4-ethylenedioxythiophene)-co-polystyrene sulfonate (PEDOT-co-PSS). Ultraviolet and photoluminescence analyses confirmed the formation of the π-conjugated polymers during the dual polymerization process. These grafted brush copolymers had exceptionally good solubilities in N,N-dimethylformamide.

Original languageEnglish
Pages (from-to)93717-93723
Number of pages7
JournalRSC Advances
Volume5
Issue number114
DOIs
Publication statusPublished - 2015 Nov 2

Fingerprint

Brushes
Copolymers
Free radical polymerization
Polymerization
Styrene
Conjugated polymers
Thiophenes
Dimethylformamide
Thiophene
Bromides
Copper
Polystyrenes
Fourier transforms
Photoluminescence
Solubility
Monomers
Metals
Nuclear magnetic resonance
Infrared radiation
Catalysts

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Govindaiah, Patakamuri ; Kim, Yong Seok ; Hong, Jae Keun ; Kim, Jung Hyun ; Cheong, In Woo. / One-pot synthesis of grafted brush copolymers via a chain-growth radical/oxidative dual polymerization system. In: RSC Advances. 2015 ; Vol. 5, No. 114. pp. 93717-93723.
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One-pot synthesis of grafted brush copolymers via a chain-growth radical/oxidative dual polymerization system. / Govindaiah, Patakamuri; Kim, Yong Seok; Hong, Jae Keun; Kim, Jung Hyun; Cheong, In Woo.

In: RSC Advances, Vol. 5, No. 114, 02.11.2015, p. 93717-93723.

Research output: Contribution to journalArticle

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