## Abstract The synthesis of a water‐soluble azo initiator was performed in four steps: action of hydrazinium sulfate onto 4‐phenylbutan‐2‐one followed by an addition of hydrogen cyanide onto the azine, then oxydation with bromine and finally chlorosulfonation of the obtained aromatic azo compound.
Synthèse d'un monomère styrénique à substituant phosphonique. Instabilité de la forme diacide et polymérisation
✍ Scribed by Bernard Boutevin; Bachar Hamoui; Jean-marie M. Bessière
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 405 KB
- Volume
- 196
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
p‐Vinylbenzyphonic acid was prepared by means of the Arbuzov reaction between triethyl phosphite and p‐chloromethylstyrene followed by silylation with bromotrimethylsilane and methanolysis. The product, which is readily cross‐linked, is stabilized as dicyclohexycylammonium salt. Radical‐initiated polymerization occurs readily; homo‐ and copolymers found are slowly cross‐linked upon releasing dicyclohexylamine.
📜 SIMILAR VOLUMES
## Abstract La réaction d'amorçage de la polymérisation anionique de la vinyl‐2 pyridine par le diphénylméthyl sodium a été étudiée par spectrophotométrie. Le diphénylméthyl sodium ne réagit pas avec les cycles pyridiniques mais, par contre sa conversion est incomplète, la vitesse de propagation ét