characterization and thermal rearrangement investigation of 1,4-polybutadiene by nuclear magnetic resonance spectroscopy

microstructural investigation and molecularweight determination of 1, 2-polybutadiene by nuclear magnetic resonance spectroscopy

in this research, the microstructural of low molecular weight 1,2-polybutadiene (1,2-pbd) was conducted by 1h and 13c nuclear magnetic resonance spectroscopy (nmr) to determine the isomeric contents of 1,4-cis, 1,4-trans and 1,2-vinyl in 1,2-pbd polymer structures. number average molecular weight for low molecular weight 1,2-pbd was measured by nmr techniques and the results were compared with ...

14 Magnetic Resonance Spectroscopy

Traumatic brain injury continues to be the major cause of death in individuals under 44 years of age (Chapter 1). In addition to the high degree of mortality, the morbidity associated with survivors of severe head injury imposes significant social and financial costs upon the community. Despite being such a major public health issue, the mechanisms that result in the irreversible tissue damage ...

Characterization of buffalo milk by P-nuclear magnetic resonance spectroscopy

We report a P nuclear magnetic resonance (P-NMR) investigation of buffalo milk, milk ultrafiltrate, and phospholipids from milk fat; for comparison corresponding data were also acquired for cow milk samples. In buffalo milk samples, we identified glycerophosphorylcoline, glycerophosphorylethanolamine and inorganic orthophosphate resonances, together with a broad peak assigned to serylphosphate ...

Characterization of Hardwood Lignin: Investigation of Syringyl/Guaiacyl composition by 13C Nuclear Magnetic Resonance spectroscopy

microstructural study on polyvinyl chloride by one and two dimensional nuclear magnetic resonance spectroscopy methods

in this research, the tacticity and microstructure of polyvinyl chloride (pvc) were studied through back bone methylene and methine carbons and protons splitting by carbon (13c nmr), proton (1h nmr) and two-dimensional (2dnmr) nulear magnetic resonance spectroscopy in deuterated etrahydrofuran.polyvinyl chloride was synthesized by emulsion polymerization of vinyl chloride (vcm) under pressure t...

Proton Nuclear Magnetic Resonance Spectroscopy