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High‐Temperature Crystalline Phases in Nylon 6/Clay Nanocomposites
Author(s) -
Liu Xiaohui,
Breen Christopher
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500143
Subject(s) - differential scanning calorimetry , materials science , nylon 6 , nanocomposite , endothermic process , amorphous solid , nylon 66 , diffraction , polymer , analytical chemistry (journal) , composite material , crystallography , chemistry , polyamide , thermodynamics , adsorption , chromatography , organic chemistry , physics , optics
Summary: Nylon 6/clay nanocomposites (N6CN) with different cooling histories were investigated by differential scanning calorimetry (DSC) and variable‐temperature X‐ray diffraction (XRD). Above the melting temperature, new endothermic peaks appeared in the DSC trace for N6CN. All the neat nylon 6 samples presented amorphous XRD patterns when heated up to the melting range. However, for N6CN samples, undefined crystalline structures remained in the substantially molten polymer matrix up to 300 °C.XRD patterns of a quenched nylon 6 sample annealed at 210 °C and N6CN samples annealed at 210, 230, and 300 °C, respectively.