A Study of Hyperfine Interactions of Peroxy Radicals in Irradiated PE Copolymer at Low Temperatures

著者

  • A. Raju Department of Physics, Rayalaseema University, Kurnool, Andhra Pradesh, India
  • S. Ramesh Department of Physics, Osmania University, Hyderabad, Telangana, India
  • B. Sanjeeva Rao Department of Physics, Govt. Degree College, Rangasai Pet, Warangal, Telangana, India
  • K. Madhukar Department of Physics, Osmania University, Hyderabad, Telangana, India

キーワード:

Peroxy radical、 ESR doublet、 hyperfine interactions、 g-values、 Bloch analysis、 activation energy

要旨

Hyperfine interactions occurring around the magnetic environment of peroxy radical are investigated by electron spin resonance (ESR) technique. For this purpose, ESR spectra are recorded in the temperature range of 77 to 300 K. ESR spectra at 77 K possess some hyperfine structure together with peroxy doublet; while at high temperatures only peroxy doublet is observed. Hyperfine parameters like g-values, peak to peak separation, spread are calculated and their temperature dependence has been investigated. Hyperfine interaction of peroxy radical depends on molecular substrate as well as temperature, Due to variation in temperature, chain conformations change causing changes in hyperfine interactions Bloch analysis is applied to calculate activation energy associated with the free radical decay. Cite this Article Raju A, Sanjeeva Rao B, Madhukar K. A Study of Hyperfine Interactions of Peroxy Radicals in Irradiated PE Copolymer at Low Temperatures. Journal of Modern Chemistry & Chemical Technology. 2017; 8(2): 13–19p.

著者略歴

  • A. Raju、 Department of Physics, Rayalaseema University, Kurnool, Andhra Pradesh, India
    Department of Physics, Principal.

ダウンロード

発行日

2017-09-24

巻号

巻 8 号 2 (2017)

セクション

Research Articles

ライセンス

Declaration and Copyright Transfer Form

(to be completed by authors)

 

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

·         I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.

·         I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).

·         I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.

·          I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. _______________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.