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Updated: May 3, 2026

The Preparation and Properties of Thermo-reversibly Cross-linked Rubber Via Diels-Alder Chemistry
Published on: August 25, 2016
Physicochemical and adsorption properties of hypercross-linked polystyrene with ultimate cross-linking density
Maria P Tsyurupa1, Zinaida K Blinnikova, Yuri A Borisov
1Nesmeyanov-Institute of Organo-Element Compounds, Russian Academy of Sciences, INEOS, Moscow, Russian Federation.
Abstract:
The paper describes unexpected properties of hypercross-linked polystyrenes with ultimate cross-linking degrees of 300, 400, and 500%, where three, four, or five methylene links, respectively, could bind each polystyrene phenyl ring to its spacious neighbors. The polymers exhibit a strong electron spin resonance signal, unusual spectra in IR, UV, and visible ranges, and they are not typical dielectrics. The nonfunctionalized hypercross-linked polymers absorb significant amounts of inorganic acids, salts, and bases due to interactions of protons or other cations with electron-donating fragments of the aromatic network with the high extent of mutual connectivity and also due to dispersion interactions of anions with the polymer matrix.
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