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Crystallization behavior of nylon 11/montmorillonite nanocomposites under annealing
Author(s) -
Zhang Xikui,
Yang Guisheng,
Lin Jiaping
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23900
Subject(s) - nylon 6 , nanocomposite , montmorillonite , materials science , annealing (glass) , polymer chemistry , triclinic crystal system , in situ polymerization , crystallization , fourier transform infrared spectroscopy , polymerization , transmission electron microscopy , nylon 66 , monomer , polymer , chemical engineering , crystal structure , composite material , polyamide , crystallography , chemistry , nanotechnology , engineering
Exfoliated nylon 11/montmorillonite (MMT) nanocomposites were prepared via in situ polymerization by the dispersion of organically modified MMT in 11‐aminoundecanoic acid monomer. The polymorphic behavior of the nylon 11/MMT nanocomposites was investigated with X‐ray diffraction, transmission electron microscopy, and Fourier transform infrared with attenuated total reflectance. MMT induced and stabilized the δ‐crystalline form of nylon 11. The crystal structure of nylon 11 was transformed from a hexagonal δ‐form structure to a triclinic α‐form structure during the annealing process. Meanwhile, the hydrogen bonds in the nanocomposites also exhibited some differences from neat nylon 11 after annealing. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5483–5489, 2006