3 years ago

Opposing Phase-Segregation and Hydrogen-Bonding Forces in Supramolecular Polymers

Opposing Phase-Segregation and Hydrogen-Bonding Forces in Supramolecular Polymers
Thomas Thurn-Albrecht, Tingzi Yan, Matthias Fischer, Senbin Chen, Kay Saalwächter, Anton Mordvinkin, Wolfgang H. Binder
Phase segregation between different macromolecules and specific weak interactions are the basis of molecular organization in many biological systems, which are held together by attractive hydrogen bonds (H-bonds) and dissociated by phase segregation. We report significant changes in the association behavior of covalent H-bonds by the phase of attached polymer chains. Depending on the aggregation state, we observed either intact H-bonds despite segregation of the phases, or macrophase separation with a larger amount of H-bonding dissociation. Forces to reckon with: Demixing and coupling through hydrogen bonding are two opposing forces observed in a set of supramolecular diblock copolymers. Hydrogen bonds were torn apart by phase segregation of the attached polymer chains (see picture), as shown by temperature-dependent small-angle X-ray scattering and solid-state 1H NMR spectroscopy.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201707363

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.