Polymer
Polymer
5 years ago

Synthesis of rotaxane cross-linked polymers with supramolecular cross-linkers based on γ-CD and PTHF macromonomers: The effect of the macromonomer structure on the polymer properties

Synthesis of rotaxane cross-linked polymers with supramolecular cross-linkers based on γ-CD and PTHF macromonomers: The effect of the macromonomer structure on the polymer properties
Vinylic supramolecular cross-linkers (VSCs) consisting of γ-cyclodextrin (γ-CD) and terminal bulky macromonomers (TBMs) based on polytetrahydrofuran (PTHF) were designed, synthesized, and used to introduce rotaxane cross-linkers into vinyl polymers in order to endow the resulting rotaxane-cross-linked polymers (RCPs) with improved mechanical properties. Special attention was focused on the impact of the TBM structure on the properties of RCPs. VSCs, which formed in situ upon mixing γ-CD and the TBMs in water, were added to radical polymerization systems based on N,N-dimethylacrylamide to afford the corresponding RCPs. These RCPs were substantially tougher than covalently cross-linked polymers (CCPs), indicating a strong impact of the VSCs on the mechanical properties of the RCPs. VSCs obtained from macromonomers with longer PTHF chains afforded tougher RCPs compared to RCPs derived from TBMs with shorter PTHF chains, which highlights the importance of the flexible region of the polymer chain at the cross-linking points.

Publisher URL: www.sciencedirect.com/science

DOI: S0032386117300423

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.