Soluble intramolecularly hypercrosslinked polystyrene
1993; Elsevier BV; Volume: 19; Issue: 1-2 Linguagem: Inglês
10.1016/0923-1137(93)90010-d
ISSN1873-1678
AutoresM. P. Tsyurupa, T.A. Mrachkovskaya, L.A. Maslova, Г. И. Тимофеева, L.V. Dubrovina, E. F. Titova, В. А. Даванков, V.M. Men'shov,
Tópico(s)Synthesis and properties of polymers
ResumoAbstract Soluble intramolecularly hypercrosslinked polystyrene (IH-PS) was obtained by crosslinking linear PS with a bifunctional reagent as well as by an intramolecular Friedel-Crafts reaction of partially chloromethylated PS in diluted solutions. In both cases, the products obtained dissolve in toluene, swell with methanol and have a highly developed inner surface area. These properties, combined with an extremely low viscosity of solutions and high sedimentation constants, indicate a rigid but open globular structure for the IH-PS macromolecules. Several physical-chemical methods have been employed to examine the shape and size of molecules of the product.
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