Revival of Cyclopolymerizable Monomers as Low-Shrinkage Cross-Linkers

Gernot Peer, Markus Kury, Christian Gorsche, Yohann Catel, Philipp Frühwirt, Georg Gescheidt, Norbert Moszner, Robert Liska*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Cyclopolymerizable monomers (CPMs) are rarely described as cross-linkers, as their most prominent feature is the ability to form soluble polymer chains. In this study, we design a dimalonate-based CPM and investigate its ability as a low-shrinkage reactive diluent in a commercial resin. It demonstrates high reactivity in radical photopolymerization with significantly reduced volumetric shrinkage and shrinkage stress compared to commercial monomers. The investigated CPM is copolymerizable with conventional methacrylates and yields photopolymers with similar mechanical properties. Additionally, an in-depth evaluation of the propagation step during cyclopolymerization was performed via NMR studies. Considering the low volumetric shrinkage of the CPM-cross-linker, additive manufacturing or dental resins represent highly promising applications.

Original languageEnglish
Pages (from-to)8374-8381
Number of pages8
JournalMacromolecules
Volume53
Issue number19
DOIs
Publication statusPublished - 13 Oct 2020

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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