Cationic cure kinetics of a polyoxometalate loaded epoxy nanocomposite
Abstract
The reaction cure kinetics of a novel polyoxometalate (POM) loaded epoxy nanocomposite is described. The POM is dispersed in the epoxy resin up to volume fractions of 0.1. Differential scanning calorimetry measurements show the cure of the epoxy resin to be sensitive to the POM loading. A kinetics study of the cure exotherm confirms that POM acts as a catalyst promoting cationic homopolymerization of the epoxy resin. The cure reaction is shown to propagate through two cure regimes. A fast cure at short time is shown to be propagation by the activated chain end (ACE) mechanism. A slow cure at long time is shown to be propagation by the activated monomer (AM) mechanism. The activation energies for the fast and slow cure regimes agree well with other epoxy based systems that have been confirmed to propagate by the ACE and AM mechanisms.
- Authors:
- Publication Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1068479
- Report Number(s):
- SAND2012-2612J
Journal ID: ISSN 0887-624X
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Polymer Science Part A: Polymer Chemistry
- Additional Journal Information:
- Journal Volume: 50; Journal Issue: 21; Journal ID: ISSN 0887-624X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Anderson, Benjamin J. Cationic cure kinetics of a polyoxometalate loaded epoxy nanocomposite. United States: N. p., 2012.
Web. doi:10.1002/pola.26258.
Anderson, Benjamin J. Cationic cure kinetics of a polyoxometalate loaded epoxy nanocomposite. United States. https://doi.org/10.1002/pola.26258
Anderson, Benjamin J. 2012.
"Cationic cure kinetics of a polyoxometalate loaded epoxy nanocomposite". United States. https://doi.org/10.1002/pola.26258.
@article{osti_1068479,
title = {Cationic cure kinetics of a polyoxometalate loaded epoxy nanocomposite},
author = {Anderson, Benjamin J.},
abstractNote = {The reaction cure kinetics of a novel polyoxometalate (POM) loaded epoxy nanocomposite is described. The POM is dispersed in the epoxy resin up to volume fractions of 0.1. Differential scanning calorimetry measurements show the cure of the epoxy resin to be sensitive to the POM loading. A kinetics study of the cure exotherm confirms that POM acts as a catalyst promoting cationic homopolymerization of the epoxy resin. The cure reaction is shown to propagate through two cure regimes. A fast cure at short time is shown to be propagation by the activated chain end (ACE) mechanism. A slow cure at long time is shown to be propagation by the activated monomer (AM) mechanism. The activation energies for the fast and slow cure regimes agree well with other epoxy based systems that have been confirmed to propagate by the ACE and AM mechanisms.},
doi = {10.1002/pola.26258},
url = {https://www.osti.gov/biblio/1068479},
journal = {Journal of Polymer Science Part A: Polymer Chemistry},
issn = {0887-624X},
number = 21,
volume = 50,
place = {United States},
year = {Mon Aug 06 00:00:00 EDT 2012},
month = {Mon Aug 06 00:00:00 EDT 2012}
}