Résumé
Viscoelastic properties of Ni carboxylato-telechelic polyoxirane have been reported to depend on both the polarity of the polymer matrix and the neutralization pathway, i.e., the use of an excess of NiAc2 according to a one-step neutralization or a two-step process consisting of the stoichiometric end-neutralization of the acid end-groups followed by the addition of the salt excess. It has been found that the association of Ni carboxylate ion-pairs prevails over potential coordinative interactions of Ni with carboxylate and ether ligands. An excess of NiAc2 is favorable to the end-group aggregation and increases the efficiency of the crosslinking effect.
langue originale | Anglais |
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Pages (de - à) | 79-85 |
Nombre de pages | 7 |
journal | Polymer networks & blends |
Volume | 4 |
Numéro de publication | 2 |
Etat de la publication | Publié - 1 janv. 1994 |
Modification externe | Oui |