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Emulsion polymerization of styrene in the presence of carbohydrate-based amphiphiles

✍ Scribed by Susanne Demharter; Walter Richtering; Rolf Mülhaupt

Book ID
104769595
Publisher
Springer
Year
1995
Tongue
English
Weight
416 KB
Volume
34
Category
Article
ISSN
0170-0839

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✦ Synopsis

Novel amphiphilic N-alkyl-, N-decenyl-, and N-alkyl-N'-methyl-semicarbazones of maltose and maltotriose with CnH2n+l alkyl chains and n=8,9,10,11,12,16 were applied as emulsifiers in styrene emulsion polymerization. Surfactant properties, emulsion polymerization, and rheology were examined as a function of amphiphile molecular architectures. Both critical micelle concentration and average polystyrene particle size increased with decreasing alkyl chain length. Using N-methyl-N-[ll-(acryloylamino)-undecanoyl]-glucamine comonomer in a starved feed emulsion polymerization process, it was possible to prepare uniform polystyrene latex with glucamide surface.

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✍ Alain Guyot; Alain Goux 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 178 KB 👁 2 views

Dodecylhemiester of maleic anhydride is a very good anionic stabilizer for the emulsion polymerization of styrene. Rather high solid contents may be produced. Up to about 70% of the surfactant can be grafted onto the surface of the particles. Upon floculation with calcium salt, only 3% of the surfac