## Abstract The thermal degradation behaviour of two copolymers poly(acrylonitrile‐__co__‐methyl α‐acetoxyacrylate) and poly(methacrylonitrile‐__co__‐methyl α‐acetoxyacrylate) was studied by means of dynamic and isothermal thermogravimetry in the range 246–302°C and gas chromatography/mass spectrom
✦ LIBER ✦
Etude des conditions pour optimiser le calcul des frigorifères et des condenseurs à air ou évaporatifs
✍ Scribed by J.G Conan
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 532 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0140-7007
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The NMR spectrum of acrolein and acroyl fluoride (CH,=CH-COX with X=H and F) oriented in a nematic phase has been measured and information about conformational equilibrium s-cis s-trans has been obtained. The barrier to internal rotation of the COX group has been studied with various hypotheses. Goo