A~tract--A detailed examination has been undertaken of the high field t3C-NMR spectrum of various acrylonitrile/vinyl acetate copolymers prepared by radical initiation in a heterogeneous aqueous batch reaction (taken to low conversion). It has been possible to establish the triad, tetrad and pentad
โฆ LIBER โฆ
A high-field 13C-NMR study of the aqueous copolymerizations of acrylonitrile and vinyl acetate. Determination of comonomer reactivity ratios
โ Scribed by Paul F. Cheetham; Thomas N. Huckerby; Brian J. Tabner
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 472 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0014-3057
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## Abstract Complete analyses o the ^1^H NMR spectra of neomethyl iodide (1), the bromide (2) and the chloride (3) are reported. Of paticular interest is the very highโfield resonance at โ0.16 ppm in 1 which is assigned to Hโ4. The same poton in the bromide is also found upfield at 0.78 ppm. Hโ4 in