A previous study carried out on PET has shown that this polymer undergoes a continuous structural modification over a wide cooling rate interval when solidified from the melt[1] assuming a semi-crystalline structure below 2 K s 1 and a completely amorphous one above 100 K s 1. Most important was the existence of a state of intermediate order between the above cooling rates which was evidenced by the absence of crystalline reflections in the WAXS patterns and the occurrence of SAXS maxima[2] and exothermic peak areas (DSC) in the cooling rate range above 2 K s 1. Microhardness (MH) measurements revealed that this phase affects the mechanical properties[3] plausible if one thinks of crystalline clusters of intermediate order, dispersed in the amorphous polymer

TRANCHIDA, D, PICCAROLO S, KIFLIE Z (2006). Mechanical properties of the nanometer scale pre-crystalline order of a poly (ethylene terepthalate) / poly (ethylene naphthalene) blend. MACROMOLECULAR RAPID COMMUNICATIONS, 27, 1584-1589 [10.1002/marc.200600365].

Mechanical properties of the nanometer scale pre-crystalline order of a poly (ethylene terepthalate) / poly (ethylene naphthalene) blend

PICCAROLO, Stefano;
2006-01-01

Abstract

A previous study carried out on PET has shown that this polymer undergoes a continuous structural modification over a wide cooling rate interval when solidified from the melt[1] assuming a semi-crystalline structure below 2 K s 1 and a completely amorphous one above 100 K s 1. Most important was the existence of a state of intermediate order between the above cooling rates which was evidenced by the absence of crystalline reflections in the WAXS patterns and the occurrence of SAXS maxima[2] and exothermic peak areas (DSC) in the cooling rate range above 2 K s 1. Microhardness (MH) measurements revealed that this phase affects the mechanical properties[3] plausible if one thinks of crystalline clusters of intermediate order, dispersed in the amorphous polymer
Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali
TRANCHIDA, D, PICCAROLO S, KIFLIE Z (2006). Mechanical properties of the nanometer scale pre-crystalline order of a poly (ethylene terepthalate) / poly (ethylene naphthalene) blend. MACROMOLECULAR RAPID COMMUNICATIONS, 27, 1584-1589 [10.1002/marc.200600365].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/10235
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