EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES
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EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES
EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES
高分子科学(英文版)2009年27卷第4期 页码:501-510
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纸质出版:2009-07-20
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Ling-hao He a, Rui Xue a, De-bin Yang a, 等. EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES[J]. 高分子科学(英文版), 2009,27(4):501-510.
Ling-hao He a, Rui Xue a, De-bin Yang a, et al. EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES[J]. 2009, 27(4): 501-510.
Ling-hao He a, Rui Xue a, De-bin Yang a, 等. EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES[J]. 高分子科学(英文版), 2009,27(4):501-510.DOI:
Ling-hao He a, Rui Xue a, De-bin Yang a, et al. EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES[J]. 2009, 27(4): 501-510.DOI:
EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES
Biodegradable blend films composed of chitosan and PEG with various composition ratios were prepared. The chemical structure of the blend films was characterized with FTIR and X-ray
which showed no chemical bond formations but certain interactions probably coming from the hydrogen bonds. Morphologies of these blend films were viewed using AFM and SEM
suggesting that pure chitosan film had a smooth surface structure and the blend films surface showed a plenty of holes with varying size. Through the DMA measurement
it was found that there existed differences in the peak area and position of the blend films
and the peak at the glass transition temperature became significantly weaker and was markedly wider with the increasing content of PEG. The obtained results showed that the crystallinity of chitosan was suppressed and partially destroyed; and this should have an influence on the thermal behaviors and dynamic mechanical properties of the blend films.
Abstract
Biodegradable blend films composed of chitosan and PEG with various composition ratios were prepared. The chemical structure of the blend films was characterized with FTIR and X-ray
which showed no chemical bond formations but certain interactions probably coming from the hydrogen bonds. Morphologies of these blend films were viewed using AFM and SEM
suggesting that pure chitosan film had a smooth surface structure and the blend films surface showed a plenty of holes with varying size. Through the DMA measurement
it was found that there existed differences in the peak area and position of the blend films
and the peak at the glass transition temperature became significantly weaker and was markedly wider with the increasing content of PEG. The obtained results showed that the crystallinity of chitosan was suppressed and partially destroyed; and this should have an influence on the thermal behaviors and dynamic mechanical properties of the blend films.
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