The potentiality of poly-γ-glutamic acid (PGA), a naturally occurring polypeptide, towards inhibiting corrosion of mild steel in 1 M HCl is hereby assessed through electrochemical and gravimetric analysis, evaluation of adsorption and activation parameters, coupled with theoretical calculations. Inhibition efficiency of PGA is compared with that of its monomeric unit, glutamic acid (GA, a non-essential amino acid). While GA does not show any anti-corrosive effect, PGA is found to be a good corrosion inhibitor for the studied system with inhibition efficiency more than 90% within the temperature range of 293–303 K and up to an exposure time of 24 h. Experimental result has been explained in terms of decreased energy gap between the frontier molecular orbitals, increased dipole moment, and molecular chain length, as well as availability of interacting amide groups resulting due to co-polymerization. Occurrence of intramolecular synergism towards corrosion inhibition due to co-polymerization is further supported by molecular dynamics simulation results.
Research on Chemical Intermediates – Springer Journals
Published: Feb 13, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera