New photo-induced thiol-ene crosslinked films based on linear methacrylate copolymer polythiols

Qian Zhang, Ji Won Hwang, Kyung Nam Kim, Hyun Wook Jung, Seung Man Noh, Jung Kwon Oh

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Thiol-ene radical addition by photolysis is a highly efficient click reaction of sufhydryl groups with reactive enes that has been extensively explored as a promising means to construct multifunctional materials. Here, photo-induced thiol-ene crosslinked films composed of linear methacrylate copolymer polythiols (MCPsh) are reported. Well-defined MCPsh copolymers were prepared by thiol-responsive cleavage of pendant disulfide linkages positioned in the corresponding methacrylate copolymers with narrow molecular weight distribution which were synthesized by a controlled radical polymerization method. With a commercially available multifunctional acrylate as a model ene, photo-induced thiol-ene radical polyaddition of these polythiols is competitive to free-radical homopolymerization of acrylates, yielding crosslinked films exhibiting rapid cure, uniform network, and enhanced mechanical properties; these properties are required for high performance coating materials.

Original languageEnglish
Pages (from-to)2860-2868
Number of pages9
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume51
Issue number13
DOIs
Publication statusPublished - 2013 Jul 1

Fingerprint

Methacrylates
Sulfhydryl Compounds
Copolymers
Acrylates
Photolysis
Molecular weight distribution
Free radical polymerization
Homopolymerization
Free radicals
Disulfides
Free Radicals
Coatings
Mechanical properties

Keywords

  • atom transfer radical polymerization (ATRP)
  • coatings
  • crosslinking
  • photopolymerization

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry

Cite this

New photo-induced thiol-ene crosslinked films based on linear methacrylate copolymer polythiols. / Zhang, Qian; Hwang, Ji Won; Kim, Kyung Nam; Jung, Hyun Wook; Noh, Seung Man; Oh, Jung Kwon.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 51, No. 13, 01.07.2013, p. 2860-2868.

Research output: Contribution to journalArticle

Zhang, Qian ; Hwang, Ji Won ; Kim, Kyung Nam ; Jung, Hyun Wook ; Noh, Seung Man ; Oh, Jung Kwon. / New photo-induced thiol-ene crosslinked films based on linear methacrylate copolymer polythiols. In: Journal of Polymer Science, Part A: Polymer Chemistry. 2013 ; Vol. 51, No. 13. pp. 2860-2868.
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