The effect of trimethylsilyl substituents in the unit on the energy characteristics of surfaces of polynorbornenes obtained via metathesis  polymerization

Bogdanova, Y.G.; Dolzhikova, V.D.; Tikhonov, N.A.; Gringol'ts, M.L.; Kostina, Y.V.; Alent'ev, A.Y.

Авторы: Bogdanova Yu G., Dolzhikova V.D., Tikhonov N.A., Gringol'ts M.L., Kostina Yu V., Alent'ev A.Yu
Журнал: Polymer Science, Series A
Том: 55
Номер: 8
Год издания: 2013
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 471
Последняя страница: 479
DOI: 10.1134/S0965545X13080014
Аннотация: The surface properties of polynorbornenes obtained via metathesis polymerization are investigated via the wetting method. The incorporation of trimethylsilyl groups into the monomer unit causes decreases in the specific free surface energies of the investigated polymers. It is found that the dispersion terms of the specific free surface energies correlate with the free volume and gas permeability values of the polymers. As shown through the methods of differential scanning calorimetry and FTIR spectroscopy, during heating in air, the considered polynorbornenes undergo oxidative crosslinking, which increases their specific free surface energies. The interphase energies of crosslinked polynorbornenes are determined at their interfaces with liquids modeling polar and nonpolar phases, and the values of the work of adhesion of the crosslinked polynorbornenes to the model liquids are calculated. It is shown that the work of adhesion of the polymer to the polar phase decreases after introduction of trimethylsilyl groups, while the combination of polar and nonpolar phases give rise to an increase in the work of adhesion
Добавил в систему: Алентьев Александр Юрьевич

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The effect of trimethylsilyl substituents in the unit on the energy characteristics of surfaces of polynorbornenes obtained via metathesis polymerizationстатья

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