5 years ago

Optical, dielectrical properties and conduction mechanism of copolymer (N,N′-bissulphinyl-m-benzenediamine-p-phenylenediamine)

Optical, dielectrical properties and conduction mechanism of copolymer (N,N′-bissulphinyl-m-benzenediamine-p-phenylenediamine)
Copolymer N,N′-bissulphinyl-m-benzenediamine-p-phenylenediamine (SMBD-PPD) is synthesized by using Michael addition on reacting of N,N′-bissulphinyl-m-benzenediamine (SMBD) with p-phenylenediamine at 180–200°C and characterized with various physical and chemical techniques. The number average of molecular weight of SMBD-PPD copolymer is estimated using 1H NMR spectroscopy to be about 3160g/mole. The absorption properties of SMBD-PPD copolymer showed two main absorption peaks at λ=247 and 303nm in methanol solution and at λ=238 and 299nm in ethanol. The energy gap is found in the range of 2.1–2.5eV. SMBD-PPD copolymer showed emission characteristics. The emission spectra appeared at λ=460 and 490nm. The dc and ac electrical conductivities and dielectrical properties at different temperature and frequencies are investigated. The dominant conduction mechanism for ac conductivity in SMBD-PPD copolymer is found to be quantum mechanical tunneling.

Publisher URL: www.sciencedirect.com/science

DOI: S0014305717306468

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.