## Abstract On a synthétisé à l'aide de la technique de polymérisation par voie anionique, des copolymères séquencés polystyrène/polyvinyl‐4 pyridine. On a opéré sous vide, en milieu tétrahydrofuranne qui est un mauvais solvant, sinon un précipitant, de la polyvinyl‐4 pyridine; l'initiateur utilisé
Effet émulsifiant des copolymères séquencés et greffés polystyrène-polyisoprène Obtention d'émulsions huile dans huile
✍ Scribed by Jacques Periard; Gérard Riess
- Publisher
- Springer
- Year
- 1975
- Weight
- 989 KB
- Volume
- 253
- Category
- Article
- ISSN
- 0340-255X
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📜 SIMILAR VOLUMES
If a block-copolymer of styrene and ethylene oxide is mixed with a solvent which exhibits preferential affinity for the polystyrene block, birefringent gels are obtained. The structure of these gels is lamellar and the layers of unsolvated polyethyleneoxide are crystalline. In the present work, the
## Abstract In this paper we have been studying the effect of concentration __c__ on reduced viscosity η~sp~/__c__ for a triblock copolymer poly(methyl methacrylate)/polystyrene/poly(methyl methacrylate) and for a graft copolymer of the same nature. The temperature of the experiments has been chos