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Stereoregularity of PVC studied by 13 C NMR
Author(s) -
Liu NanI,
Tong S. N.,
Koenig Jack L.
Publication year - 1980
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1980.070251007
Subject(s) - polymerization , solvent , carbon 13 nmr , proton , tacticity , polymer chemistry , nmr spectra database , proton nmr , spectral line , spectrometer , materials science , chemistry , analytical chemistry (journal) , organic chemistry , polymer , physics , optics , nuclear physics , astronomy
The proton decoupled 13 C NMR spectra of PVC polymerized at various temperatures were obtained using a 150‐MHz NMR spectrometer. Chemical shift changes induced by a solvent effect were utilized to allow the detection of the six possible tetrads. Eight of ten possible pentads were also observed. The relative areas of tetrads and triads indicate that the polymerization of PVC above −20°C is Bernoullian.