High yield NMR, FY86-2: Quarterly report
Several analytical methods were investigated this quarter. The previously developed method for determining the percent vinyl and phenyl in silicones has been modified, because it was discovered that the silicone gums are not perfectly homogeneous. Standards having a known vinyl and phenyl content were analyzed to confirm the accuracy of the NMR method. In addition, a high temperature carbon-13 NMR analysis of high strength, low density polymethylpentene (TPX) polymer was performed. A solder flux used on several programs was analyzed and the activator was identified as the hydrochloric acid (HCl) salt of glutamic acid. The reactions that occur in the model epoxy system, phenyl glycidyl ether plus dicyandiamide (DICY), plus boron trifluoride monoethylamine (BF/sub 3/-MEA) were investigated. The solvent carriers in two epoxies were identified. An alkaline cleaner was analyzed and a method was developed to estimate changes in detergent concentration. Methods based on carbon-13 NMR were developed to test the purity of organic compounds. 7 refs., 10 figs., 5 tabs.
- Research Organization:
- Allied Corp., Kansas City, MO (USA). Bendix Kansas City Div.
- DOE Contract Number:
- AC04-76DP00613
- OSTI ID:
- 6953402
- Report Number(s):
- BDX-613-3625; ON: DE87002959
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
ARYL RADICALS
CARBON 13
CARBON ISOTOPES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
EPOXIDES
EVEN-ODD NUCLEI
ISOTOPES
LIGHT NUCLEI
LIQUID COLUMN CHROMATOGRAPHY
MAGNETIC RESONANCE
MONOMERS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
PHENYL RADICALS
POLYMERS
QUANTITATIVE CHEMICAL ANALYSIS
RADICALS
RESONANCE
SEPARATION PROCESSES
SILICONES
SILOXANES
STABLE ISOTOPES
VINYL MONOMERS