http://www.cnr.it/ontology/cnr/individuo/prodotto/ID31942
CURING OF A RIGID-ROD EPOXY-RESIN WITH AN ALIPHATIC DIACID - AN EXAMPLE OF A LIGHTLY CROSS-LINKED LIQUID-CRYSTALLINE THERMOSET (Articolo in rivista)
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- Label
- CURING OF A RIGID-ROD EPOXY-RESIN WITH AN ALIPHATIC DIACID - AN EXAMPLE OF A LIGHTLY CROSS-LINKED LIQUID-CRYSTALLINE THERMOSET (Articolo in rivista) (literal)
- Anno
- 1995-01-01T00:00:00+01:00 (literal)
- Alternative label
GIAMBERINI M, AMENDOLA E, CARFAGNA C (1995)
CURING OF A RIGID-ROD EPOXY-RESIN WITH AN ALIPHATIC DIACID - AN EXAMPLE OF A LIGHTLY CROSS-LINKED LIQUID-CRYSTALLINE THERMOSET
in Macromolecular rapid communications
(literal)
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- GIAMBERINI M, AMENDOLA E, CARFAGNA C (literal)
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- ISI Web of Science (WOS) (literal)
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- UNIV NAPLES FEDERICO II, DEPT MAT & PROD ENGN, I-80125 NAPLES, ITALY
CNR ITMC, I-80125 NAPLES, ITALY (literal)
- Titolo
- CURING OF A RIGID-ROD EPOXY-RESIN WITH AN ALIPHATIC DIACID - AN EXAMPLE OF A LIGHTLY CROSS-LINKED LIQUID-CRYSTALLINE THERMOSET (literal)
- Abstract
- By reacting a rigid rod epoxy terminated molecule (p-bis(2,3-epoxypropoxy)-alpha-methylstilbene) with an aliphatic carboxylic acid (decanedioic acid), a lightly crosslinked liquid crystalline network is obtained. This network exhibits a smectic-like phase. While the mesophasic structure resulted ''frozen'' by the crosslinks in the case of highly crosslinked liquid crystalline epoxy resins, in this case a reversible transition from the liquid crystalline to the isotropic phase is observed. Moreover, while curing the same rigid rod epoxy molecule with amines resulted in a thermoset with a nematic structure, in this case a more ordered mesophase can be obtained. Preliminary results show that it is possible to orient macroscopically the mesogenic chains by stretching thin films above the glass transition temperature (T-g) and then quickly cooling down to the glassy stale. This makes this material very attractive in the field of optical applications. (literal)
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