Packing density of the amine‐crosslinked stoichiometric epoxy networks | Zendy

Bellenger V. | Zendy; Dhaoui W. | Zendy; Morel E. | Zendy; Verdu J. | Zendy

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Packing density of the amine‐crosslinked stoichiometric epoxy networks

Author(s) -

Bellenger V.,

Dhaoui W.,

Morel E.,

Verdu J.

Publication year - 1988

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1988.070350301

Subject(s) - materials science , sphere packing , stoichiometry , van der waals force , polymer , hydrogen bond , epoxy , atomic packing factor , polymer chemistry , polyamide , amine gas treating , composite material , molecule , chemistry , organic chemistry , crystallography

The packing densities (Van der Waals volume/molar volume) were determined at 293 K for various epoxide–amine stoichiometric networks. They are noticeably higher than those of linear polymers except strongly hydrogen bonded ones [polyamides, poly(vinyl alcohol)]. By extrapolation of the dilatometric data, it was found that the packing densities at the frontiers of the glassy state (0 K and T g ) of the epoxy networks are comparable to those of linear polymers having the same theoretical hydrogen bond density (polyamides). However, for a given packing density at 0 K, the packing density at T g is higher for a network than for the corresponding linear polymer.

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