3 years ago

Bioinspired flame retardant polymers of tyrosol

Bioinspired flame retardant polymers of tyrosol
Thomas J. Klement, Ramaswamy Nagarajan, Ryan M. Bouldin, Zhiyu Xia, Weeradech Kiratitanavit
The enzyme catalyzed polymerization of flame retardant (FR) polymers from the renewable resource 2-(4-hydroxyphenyl) ethanol (HPE), commonly known as tyrosol, is presented. The synthesis is environmentally friendly and requires only monomer, peroxidase catalyst, dilute hydrogen peroxide, and deionized water. Phenolic polymers are produced in short, one pot, high yield reactions that require minimal purification. Fourier transform infrared spectroscopy and 1H-NMR analysis suggest the polymers are coupled through the 1, 2, 4, and 5 positions of the phenol ring and through the phenoxy substituent. Thermogravimetric analysis and pyrolysis combustion flow calorimeter show HPE homopolymers exhibit very low heat release rate and total heat release, while copolymerization with phenol increases already high char yields. Gel permeation chromatography reveals the molecular weight of the polymer increases with ethanol cosolvent concentration. The alcohol cosolvent also increases the proportion of oxyphenylene linkages to the detriment of FR properties. Preliminary quantitative structure–activity relationship toxicity modeling predicts the polymers are negative for developmental toxicity and Ames mutagenicity. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45394.

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

DOI: 10.1002/app.45394

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.