Nylon Accelerated Aging: Thermal-oxidative versus Humidity
Abstract not provided.
Publications
PARACHUTE AGING STUDIES
Abstract not provided.
Nylon humidity aging with and without Kevlar
Abstract not provided.
Radiation oxidation mechanisms in polyolefins studied by C-13 isotopic labeling
Abstract not provided.
Insights into oxidation mechanisms in gamma-irradicated polypropylene, utilizing C-13 labeled samples with analysis by GC/MS, NMR and FTIR
Proposed for publication in Nuclear Instruments and Methods in Physics Research B.
Abstract not provided.
Elucidating Polymer Degradation Mechanisms Using High-resolution Mass Spectroscopy
Abstract not provided.
Nylon humidity aging with and without Kevlar
Proposed for publication in American Chemical Society Meeting & Exposition 2006 San Francisco Polymer preprints.
Abstract not provided.
Radiation Aging and Post-Irradation Aging Products in Polypropylene Samples Selectively Labeled with 13C
Abstract not provided.
Degradation studies of Nylon and Kevlar
Abstract not provided.
Kevlar humidity degradation : oxidative versus inert atmosphere aging
Abstract not provided.
Selective 13C labeling as a technique to understand radiation-oxidation degradation in polypropylene
Proposed for publication in an IAEA Techdoc.
Abstract not provided.
Kevlar humidity degradation : oxidative versus inert atmosphere aging
Proposed for publication in Polymer Preprints.
Abstract not provided.
C NMR analysis of the oxidative degradation of selectively labeled polypropylene
Abstract not provided.
Isotopically labeled studies of thermal and radiation induced polymer degradation
Abstract not provided.
Parachute materials study : Kevlar degradation
Abstract not provided.
Preliminary Investigation of the Thermal Decomposition of Ablefoam and EF-AR20 Foam (Ablefoam Replacement)
Preliminary thermal decomposition experiments with Ablefoam and EF-AR20 foam (Ablefoam replacement) were done to determine the important chemical and associated physical phenomena that should be investigated to develop the foam decomposition chemistry sub-models that are required in numerical simulations of the fire-induced response of foam-filled engineered systems for nuclear safety applications. Although the two epoxy foams are physically and chemically similar, the thermal decomposition of each foam involves different chemical mechanisms, and the associated physical behavior of the foams, particularly ''foaming'' and ''liquefaction,'' have significant implications for modeling. A simplified decomposition chemistry sub-model is suggested that, subject to certain caveats, may be appropriate for ''scoping-type'' calculations.
Final report for the designed synthesis of controlled degradative materials LDRD
The main goal of this research was to develop degradable systems either by developing weaklink-containing polymers or identifying commercial polymeric systems which are easily degraded. In both cases, the degradation method involves environmentally friendly chemistries. The weaklinks are easily degradable fragments which are introduced either randomly or regularly in the polymer backbone or as crosslinking sites to make high molecular weight systems via branching. The authors targeted three general application areas: (1) non-lethal deterrents, (2) removable encapsulants, and (3) readily recyclable/environmentally friendly polymers for structural and thin film applications.
Results 26–42 of 42