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Escola Superior de Tecnologia e Gestão (ESTG) >
Artigos em Acta de Conferência Internacional (ESTG) >
Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10314/3397
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| Título: | Meeting the challenge of the cooperative, nonArrhenius, non-linear response behaviour of macromolecular materials |
| Autores: | André, José Reinas
José, Cruz Pinto |
| Palavras Chave: | polypropylene
CSTMD |
| Data: | 2004 |
| Editora: | Macro 2004 (World Polymer Congress) |
| Resumo: | One of the authors proposed recently a cooperative
segmental theory of molecular dynamics (CSTMD), for the timedependent behaviour of polymers and other materials, at constant
volume, when subject to thermal (heating/cooling) or forced
(mechanical, dielectrical, etc.) excitations. The theory only assumes
that segments may be identified within the structure, which may
(individually, or in clusters of random size, n ≥ 1) contribute to the
materials response. For example, in a polypropylene, a segment may
be identified as the shortest chain length capable of independent
torsion and rotation (within the amorphous phase), as in the crankshaft type of motions (4 adjacent main chain carbon atoms and
their associated methyls and hydrogens). |
| URI: | http://hdl.handle.net/10314/3397 |
| Aparece nas Colecções: | Artigos em Acta de Conferência Internacional (ESTG)
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Ficheiros deste Registo:
| Ficheiro |
Descrição |
Tamanho | Formato |
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| L1193.pdf_MACRO_2004.pdf | | 200Kb | Adobe PDF | Ver/Abrir | |
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