COMPOSITION, RADIATION DOSE AND TEMPERATURE DEPENDENT DEGRADATION STUDIES OF POLYAMIDE 6 HOMOPOLYMER AND COPOLYMERS

Authors

  • B. Sanjeeva Rao Department of Physics, Govt.Degree College,Warangal .
  • A RAJU Depatment of Physics Rayalaseema University, Kurnool.
  • RAVINDER A Depatment of Physics, Osmania University,Hydrabad.
  • K MADHUKAR Depatment of Physics, Osmania University,Hydrabad

DOI:

https://doi.org/10.37591/jocc.v5i1.900

Abstract

Composition radiation dose temperature dependency on free radicals generated in PA6, PA6/ PA12 copolymer, has been investigated by electron spin resonance (ESR) and FTIR techniques. ESR spectra of -irradiated PA6 has shown complex shaped and number of hyperfine lines is observed to be in between 6-10. This complex spectrum is assigned to macro-radicals of the type ~CH2CHCH2~, which in principle has to give a ten line ESR spectrum. However, due to inter-play of hyperfine interactions, only 6-10 lines are present. In contrast, the PA12 has shown on ESR spectrum with less number of hyperfine lines. With regard to copolymers with high PA6 content, have exhibited more hyperfine structures are found to depend on less PA6 content. A reason for this behavior has to been proposed. Effect of radiation dose and temperature on the generation of free radicals has been made. FTIR spectra of unirradiated and irradiated homo polymer and copolymer are compared

 

Key words: ESR spectra, FTIR spectra, Free radical, Gamma irradiation,PA6/PA12 copolymer.

Downloads

Published

2018-07-02

Issue

Vol. 5 No. 1 (2018)

Section

Articles

License

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.