Synthesis of Block, Statistical, and Gradient Copolymers from Octadecyl (Meth)acrylates Using Atom Transfer Radical Polymerization

Shuhui Qin, Jocelyn Saget, Dong-Chul Pyun, Shijun Jia, Tomasz Kowalewski, Krzysztof Matyjaszewski

Research output: Contribution to journalArticle

127 Citations (Scopus)

Abstract

The synthesis of well-defined homopolymers and random, block, and gradient copolymers from octadecyl acrylate (OA) and octadecyl methacrylate (OMA) using atom transfer radical polymerization (ATRP) is reported. Random copolymers were synthesized by the one-pot copolymerization of either tert-butyl acrylate/octadecyl acrylate (Mn,p(tBA-r-OA) = 13 680; M w/Mn = 1.13) or tert-butyl methacrylate/octadecyl methacrylate (Mn,p(tBMA-r-OMA) = 24 250; Mw/Mn = 1.14) monomer pairs. Additionally, gradient copolymers were prepared by the simultaneous copolymerization of either tert-butyl acrylate/octadecyl methacrylate (Mn,p(tBA-co-OMA)) = 21 790; Mw/M n = 1.25) or tert-butyl methacrylate/octadecyl acrylate (M n,p(tBMA-co-OA)) = 21 900; Mw/Mn = 1.20) monomer pairs. AB and ABA triblock copolymers containing octadecyl groups were also prepared with controlled molar mass and composition. The sequence of blocking was varied starting from either poly(tert-butyl (meth)acrylate) or poly(octadecyl (meth)acrylate) macroinitiators. The halogen-exchange technique allowed preparation of various well-defined polyacrylate-polymethacrylate block copolymers. Furthermore, uniform phase-separated structures were formed in ultrathin films cast from AB diblock copolymers of ptBMA-b-pOMA (Mn = 52 000; Mw/Mn = 1.12) and ptBA-b-pOMA (Mn = 28 750; Mw/Mn = 1.20) as determined from AFM. ABA triblock copolymers of pOMA-b-ptBA-b-pOMA (Mn = 75 900; M w/Mn = 1.14) and poly(octadecyl methacrylate)-block-poly(n-butyl acrylate)-block-poly-(octadecyl methacrylate) (Mn = 74 400; Mw/Mn = 1.16) were also analyzed using AFM.

Original languageEnglish (US)
Pages (from-to)8969-8977
Number of pages9
JournalMacromolecules
Volume36
Issue number24
DOIs
StatePublished - Dec 2 2003
Externally publishedYes

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Acrylates
Atom transfer radical polymerization
Block copolymers
Methacrylates
Copolymers
Copolymerization
Monomers
Molar mass
Ultrathin films
Phase structure
Polyacrylates
Homopolymerization
Halogens
acrylic acid
Chemical analysis

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Synthesis of Block, Statistical, and Gradient Copolymers from Octadecyl (Meth)acrylates Using Atom Transfer Radical Polymerization. / Qin, Shuhui; Saget, Jocelyn; Pyun, Dong-Chul; Jia, Shijun; Kowalewski, Tomasz; Matyjaszewski, Krzysztof.

In: Macromolecules, Vol. 36, No. 24, 02.12.2003, p. 8969-8977.

Research output: Contribution to journalArticle

Qin, Shuhui ; Saget, Jocelyn ; Pyun, Dong-Chul ; Jia, Shijun ; Kowalewski, Tomasz ; Matyjaszewski, Krzysztof. / Synthesis of Block, Statistical, and Gradient Copolymers from Octadecyl (Meth)acrylates Using Atom Transfer Radical Polymerization. In: Macromolecules. 2003 ; Vol. 36, No. 24. pp. 8969-8977.
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abstract = "The synthesis of well-defined homopolymers and random, block, and gradient copolymers from octadecyl acrylate (OA) and octadecyl methacrylate (OMA) using atom transfer radical polymerization (ATRP) is reported. Random copolymers were synthesized by the one-pot copolymerization of either tert-butyl acrylate/octadecyl acrylate (Mn,p(tBA-r-OA) = 13 680; M w/Mn = 1.13) or tert-butyl methacrylate/octadecyl methacrylate (Mn,p(tBMA-r-OMA) = 24 250; Mw/Mn = 1.14) monomer pairs. Additionally, gradient copolymers were prepared by the simultaneous copolymerization of either tert-butyl acrylate/octadecyl methacrylate (Mn,p(tBA-co-OMA)) = 21 790; Mw/M n = 1.25) or tert-butyl methacrylate/octadecyl acrylate (M n,p(tBMA-co-OA)) = 21 900; Mw/Mn = 1.20) monomer pairs. AB and ABA triblock copolymers containing octadecyl groups were also prepared with controlled molar mass and composition. The sequence of blocking was varied starting from either poly(tert-butyl (meth)acrylate) or poly(octadecyl (meth)acrylate) macroinitiators. The halogen-exchange technique allowed preparation of various well-defined polyacrylate-polymethacrylate block copolymers. Furthermore, uniform phase-separated structures were formed in ultrathin films cast from AB diblock copolymers of ptBMA-b-pOMA (Mn = 52 000; Mw/Mn = 1.12) and ptBA-b-pOMA (Mn = 28 750; Mw/Mn = 1.20) as determined from AFM. ABA triblock copolymers of pOMA-b-ptBA-b-pOMA (Mn = 75 900; M w/Mn = 1.14) and poly(octadecyl methacrylate)-block-poly(n-butyl acrylate)-block-poly-(octadecyl methacrylate) (Mn = 74 400; Mw/Mn = 1.16) were also analyzed using AFM.",
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AU - Qin, Shuhui

AU - Saget, Jocelyn

AU - Pyun, Dong-Chul

AU - Jia, Shijun

AU - Kowalewski, Tomasz

AU - Matyjaszewski, Krzysztof

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N2 - The synthesis of well-defined homopolymers and random, block, and gradient copolymers from octadecyl acrylate (OA) and octadecyl methacrylate (OMA) using atom transfer radical polymerization (ATRP) is reported. Random copolymers were synthesized by the one-pot copolymerization of either tert-butyl acrylate/octadecyl acrylate (Mn,p(tBA-r-OA) = 13 680; M w/Mn = 1.13) or tert-butyl methacrylate/octadecyl methacrylate (Mn,p(tBMA-r-OMA) = 24 250; Mw/Mn = 1.14) monomer pairs. Additionally, gradient copolymers were prepared by the simultaneous copolymerization of either tert-butyl acrylate/octadecyl methacrylate (Mn,p(tBA-co-OMA)) = 21 790; Mw/M n = 1.25) or tert-butyl methacrylate/octadecyl acrylate (M n,p(tBMA-co-OA)) = 21 900; Mw/Mn = 1.20) monomer pairs. AB and ABA triblock copolymers containing octadecyl groups were also prepared with controlled molar mass and composition. The sequence of blocking was varied starting from either poly(tert-butyl (meth)acrylate) or poly(octadecyl (meth)acrylate) macroinitiators. The halogen-exchange technique allowed preparation of various well-defined polyacrylate-polymethacrylate block copolymers. Furthermore, uniform phase-separated structures were formed in ultrathin films cast from AB diblock copolymers of ptBMA-b-pOMA (Mn = 52 000; Mw/Mn = 1.12) and ptBA-b-pOMA (Mn = 28 750; Mw/Mn = 1.20) as determined from AFM. ABA triblock copolymers of pOMA-b-ptBA-b-pOMA (Mn = 75 900; M w/Mn = 1.14) and poly(octadecyl methacrylate)-block-poly(n-butyl acrylate)-block-poly-(octadecyl methacrylate) (Mn = 74 400; Mw/Mn = 1.16) were also analyzed using AFM.

AB - The synthesis of well-defined homopolymers and random, block, and gradient copolymers from octadecyl acrylate (OA) and octadecyl methacrylate (OMA) using atom transfer radical polymerization (ATRP) is reported. Random copolymers were synthesized by the one-pot copolymerization of either tert-butyl acrylate/octadecyl acrylate (Mn,p(tBA-r-OA) = 13 680; M w/Mn = 1.13) or tert-butyl methacrylate/octadecyl methacrylate (Mn,p(tBMA-r-OMA) = 24 250; Mw/Mn = 1.14) monomer pairs. Additionally, gradient copolymers were prepared by the simultaneous copolymerization of either tert-butyl acrylate/octadecyl methacrylate (Mn,p(tBA-co-OMA)) = 21 790; Mw/M n = 1.25) or tert-butyl methacrylate/octadecyl acrylate (M n,p(tBMA-co-OA)) = 21 900; Mw/Mn = 1.20) monomer pairs. AB and ABA triblock copolymers containing octadecyl groups were also prepared with controlled molar mass and composition. The sequence of blocking was varied starting from either poly(tert-butyl (meth)acrylate) or poly(octadecyl (meth)acrylate) macroinitiators. The halogen-exchange technique allowed preparation of various well-defined polyacrylate-polymethacrylate block copolymers. Furthermore, uniform phase-separated structures were formed in ultrathin films cast from AB diblock copolymers of ptBMA-b-pOMA (Mn = 52 000; Mw/Mn = 1.12) and ptBA-b-pOMA (Mn = 28 750; Mw/Mn = 1.20) as determined from AFM. ABA triblock copolymers of pOMA-b-ptBA-b-pOMA (Mn = 75 900; M w/Mn = 1.14) and poly(octadecyl methacrylate)-block-poly(n-butyl acrylate)-block-poly-(octadecyl methacrylate) (Mn = 74 400; Mw/Mn = 1.16) were also analyzed using AFM.

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