TITLE:
Preparation and Characterization of Maltose-Pendant Polymer/Mica Nanocomposites and Their Application to Oxygen Gas Barrier Films
AUTHORS:
Hideo Sakurai, Shoji Nagaoka, Maki Horikawa, Tomohiro Shirosaka, Shuzou Kubota, Kazuhiro Hamada, Makoto Takafuji, Hirotaka Ihara
KEYWORDS:
Maltose-Pendant Polymer, Nanocomposite, Mica, Oxygen Gas Barrier Film, Food Packaging
JOURNAL NAME:
Journal of Biomaterials and Nanobiotechnology,
Vol.5 No.3,
June
12,
2014
ABSTRACT: Maltose-pendant
polymer/mica nanocomposites were prepared by a solution intercalation method.
For organic composite part, 1) maltose-pendant polymer (homopolymer) and 2) the
copolymer of maltose-pendant monomer and a small amount of N,N-Dimethylamino propylacrylamide,
methyl chloride quartenary were used. The morphological studies (XRD and
FE-SEM) revealed that the hybrid of maltose-pendant polymer was a conventional
phase separated composite. On the other hand, the hybrid using the copolymer
exhibited exfoliated structure. Both the conventional composite of
maltose-pendant polymer and the nanocomposite of copolymer were applied to a
coating material for oxygen gas barrier layer on a nylon-6 film, and oxygen
transmission rates of the films were evaluated. Maltose-pendant polymer had a
good oxygen barrier property under dry condition, and the barrier property
under wet condition was improved by the hybridization with mica. In contrast,
the barrier property of copolymer was slightly inferior to that of maltosependant
polymer. However, under dry condition, it can be seen that the nanocomposite of
copolymer improves the barrier property more effectively than the case of
conventional composite of maltose-pendant polymer.