Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Nicholas Henry Giron"'
Publikováno v:
Polymer Degradation and Stability. 166:353-378
Polymer aging under combined radiation-thermal oxidative conditions is intrinsically more convoluted than traditional thermal degradation. Accelerated aging methods for predictive purposes have to include thermal as well as radiative degradation path
Autor:
John Watt, Michael L. Busse, Isaac Avina, Mark D. Allendorf, Kenneth L. Sale, Jijiao Zeng, Casey T. Simoes, Blake A. Simmons, Nicholas Henry Giron, Nadeya Rader, Christopher K. Brenden, Nelson S. Bell, Todd M. Alam, Michael S. Kent
Publikováno v:
Green Chemistry. 20:3024-3037
Room temperature Fenton (FEN) and chelator-mediated Fenton (CMF) reactions were examined for transforming lignin into a water-soluble polymer. Compared to depolymerization of lignin, this has the advantage of potentially yielding a product directly w
Autor:
Tatiana Pyatina, Mathias C. Celina, Nicholas Henry Giron, Charles E. Harris, Toshifumi Sugama, Erica Marie Redline
Publikováno v:
Polymer Degradation and Stability. 146:317-326
Previous observation of EPDM and FEPM materials aged in thermo-oxidative and thermo-oxidative plus hydrolytic environments revealed an unusual trend: the degradation and disintegration of these polymers in the former case but the ability to maintain
Autor:
Nicholas Henry Giron, Mathew Celina
Publikováno v:
Polymer Degradation and Stability. 145:93-101
Accelerated aging of polymers at elevated temperatures often involves the generation of volatiles. These can be formed as the products of oxidative degradation reactions or intrinsic pyrolytic decomposition as part of polymer scission reactions. A si
Autor:
Hayden T. Black, Mathias C. Celina, Brad H. Jones, Nicholas Henry Giron, Todd M. Alam, Timothy N. Lambert, Mark E. Stavig, Patricia Sue. Sawyer, David R. Wheeler
Publikováno v:
Macromolecules. 50:5014-5024
Physical stress relaxation in rubbery, thermoset polymers is limited by cross-links, which impede segmental motion and restrict relaxation to network defects, such as chain ends. In parallel, the cure shrinkage associated with thermoset polymerizatio
Autor:
N. Fredj, Jamie Michael Kropka, John D. McCoy, Caitlyn M. Clarkson, Lebelo Hailesilassie, Nicholas Henry Giron, Windy B. Ancipink, Mathias C. Celina
Publikováno v:
Polymer. 105:243-254
When diethanolamine (DEA) is used as a curative for a DGEBA epoxy, a rapid “adduct-forming” reaction of epoxide with the secondary amine of DEA is followed by a slow “gelation” reaction of epoxide with hydroxyl and with other epoxide. Through
Autor:
Ronen Polsky, Edward E. K. Baidoo, Michael S. Kent, Seema Singh, Michael L. Busse, Kenneth L. Sale, Isaac Avina, Mathias C. Celina, Dale L. Huber, Jay D. Keasling, Nicholas Henry Giron, Blake A. Simmons, Nadeya Rader, Jerilyn A. Timlin, Anthe George, Laura E. Martin, Noppadon Sathitsuksanoh, Victor H. Chavez
Publikováno v:
Green Chemistry. 17:4830-4845
We report a new assay for breakdown of high molecular weight, insoluble lignin based on lignin films. In this method, decrease in film thickness is detected upon solubilization of mass through either chemical alteration of the lignin or molecular wei
Autor:
Nicholas Henry Giron, Christopher G. Campbell, Estevan Martinez, Adam Cook, Kylie B. Manning, Nicholas B. Wyatt, Mathias C. Celina, Lindsey Gloe Hughes
Publikováno v:
Macromolecular Materials and Engineering. 304:1800511
Publikováno v:
Polymer. 53:4461-4471
High temperature micro-ATR IR spectroscopy has recently become available, allowing for convenient IR spectral acquisition at elevated temperatures. This study presents a perspective on using this capability to monitor polymer chemistry with an emphas
The accelerated aging behavior and aging state of a 30 year old field retrieved polysulfide elastomer was examined. The material is used as an environmental thread sealant for a stainless steel bolt in a steel threaded insert in an aluminum assembly.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::315b30beac374bdb0458b8876c6a2e67
https://doi.org/10.2172/1183359
https://doi.org/10.2172/1183359