High resolution NMR‐spectra of polypropylene, poly(3,3,3‐d 3 ‐propylene), and poly(1,1‐d 2 ‐propylene) have been obtained and analyzed. Although the methinyl proton spectrum is not influenced by the stereochemical configuration, differences do appear in the methylene proton spectrum which can be related to tacticity. By comparison of calculate methylene proton spectra assuming different ratios of isotactic and syndiotactic diads with the observed spectra, it is possible to obtain information about the tacticity of polypropylene samples. This method of obtaining information about polymer configuration should be generally useful for polymers which have complex NMR‐spectra.
No takes yet. Share an insight, caveat, or question.
Wayne Coleman Tincher (1965) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: