EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES

Ling-hao He a; Rui Xue a; De-bin Yang a; Ying Liu a; Rui Song b

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EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES

Papers | Updated：2021-06-21

- EFFECTS OF BLENDING CHITOSAN WITH PEG ON SURFACE MORPHOLOGY, CRYSTALLIZATION AND THERMAL PROPERTIES
- Vol. 27, Issue 4, Pages: 501-510(2009)
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- Published：20 July 2009
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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：

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：

摘要

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

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