Jump to main content
Jump to site search

Issue 22, 2017, Issue in Progress
Previous Article Next Article

Phosphazene-based novel organo-inorganic hybrid salt: synthesis, characterization and performance evaluation as multifunctional additive in polyol

Author affiliations

Abstract

A novel organo-inorganic hybrid salt, namely, hexa-P-(N,N′-dimethylaminomethyl-3,5-di-tert-butyl-4-hydroxyphenyl)cyclotriphosphazene hexachloride [N3P3{–N(R1)2–CH2–C6H2(OH)R22}6]6Cl (R1 = CH3, R2 = C(CH3)3), which was denoted as PzP(-NHP)6, was synthesized by the reaction between hexachlorocyclotriphosphazene (N3P3Cl6) and 2,6-di-tert-butyl-4-(dimethylaminomethyl)phenol in dichloromethane. The synthesized salt was characterized using elemental analysis (CHN), UV-vis, infrared (IR), and nuclear magnetic resonance (NMR) spectroscopy, and thermogravimetry (TG). The salt was then evaluated as a multifunctional antioxidant, anticorrosion, antiwear and antifriction additive in a polyol lube base oil. PzP(-NHP)6 was found to display excellent antioxidant and moderate anticorrosion properties as estimated by the RBOT (rotating bomb oxidation test) according to ASTM D2272 and standard corrosion test procedures, respectively. Four-ball tests according to ASTM D4172B were performed in order to evaluate its antiwear and antifriction characteristics in terms of the average wear scar diameter (AWSD) and average friction coefficient, respectively. It was found that PzP(-NHP)6 at a doping concentration of 3000 ppm reduced the AWSD of the blank polyol from 695.83 ± 16.86 to 585.83 ± 11.72 μm, whereas the average friction coefficient decreased from 0.110 ± 0.0077 to 0.080 ± 0.0097.

Graphical abstract: Phosphazene-based novel organo-inorganic hybrid salt: synthesis, characterization and performance evaluation as multifunctional additive in polyol

Back to tab navigation

Article information


Submitted
02 Nov 2016
Accepted
13 Jan 2017
First published
28 Feb 2017

This article is Open Access

RSC Adv., 2017,7, 13390-13397
Article type
Paper

Phosphazene-based novel organo-inorganic hybrid salt: synthesis, characterization and performance evaluation as multifunctional additive in polyol

R. K. Singh, A. Kukrety, R. C. Saxena, A. Chouhan, Suman L. Jain and S. S. Ray, RSC Adv., 2017, 7, 13390
DOI: 10.1039/C6RA26186H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements