Journal of Applied Polymer Science · 1985 · 32 citations · 0 references
Materials ScienceChemical EngineeringViscous Oil RecoveryChemical Enhanced Oil RecoveryEngineeringPolymer MaterialWide-angle X-ray DiffractionPolymer ScienceX-ray DiffractionEnhanced Oil RecoveryPolymer CharacterizationPolymer PropertyChemistryPolymer AnalysisCrystallographyIr SpectroscopyPolymer ChemistryPolymers
Polyacrylamides can be readily characterized using techniques such as IR spectroscopy, 13C-NMR, elementary analysis, TGA, and x-ray diffraction. The first three techniques can also be used quantitatively to measure the degree of hydrolysis of the polymers, without the need to know accurately the weight of the sample. The presence of inorganic salts, such as Na2SO4, Na4(CO3)SO4, and Na2CO3, is readily detected via IR or wide-angle x-ray diffraction. No evidence of crystallinity is found in the samples studied.