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材料研究学报  2011, Vol. 25 Issue (4): 337-341    
  研究论文 本期目录 | 过刊浏览 |
酰基侧链对O--酰化壳寡糖/聚乳酸共混膜氢键的影响
李明春, 辛梅华, 李中皇, 毛扬帆
华侨大学材料科学与工程学院 厦门 361021
The Effect of Acyl Sidechain on the Hydrogen Bonds in O–acylated Oligochitosan/PLLA Blend Films
LI Mingchun, XIN Meihua, LI Zhonghuang, MAO Yangfan
College of Material Science and Engineering, Huaqiao University, Xiamen 361021
引用本文:

李明春 辛梅华 李中皇 毛扬帆. 酰基侧链对O--酰化壳寡糖/聚乳酸共混膜氢键的影响[J]. 材料研究学报, 2011, 25(4): 337-341.
, , , . The Effect of Acyl Sidechain on the Hydrogen Bonds in O–acylated Oligochitosan/PLLA Blend Films[J]. Chin J Mater Res, 2011, 25(4): 337-341.

全文: PDF(1051 KB)  
摘要: 以氯仿为共溶剂, 用流延成膜法制备了不同酰基侧链O--酰化壳寡糖/聚乳酸(OCS/PLLA)共混膜, 用FTIR、WAXD、DSC和TG等方法表征了共混膜中的氢键作用。结果表明, OCS/PLLA共混膜组分间存在较强的氢键相互作用, 主要发生在O--酰化壳寡糖的氨基和聚乳酸的羰基之间; 在保证脂溶性的前提下, 酰基侧链越短, O--酰化壳寡糖与聚乳酸之间的氢键作用越强, 组分间的相容性越好。
关键词 有机高分子材料O--酰化壳寡糖聚乳酸共混膜氢键相容性    
Abstract:Three kinds of O-acylated oligochitosans/poly (L-lactic acid) (OCS/PLLA) blend films were prepared by solution-casting approach using CHCl3, the hydrogen-bond interaction between OCS and PLLA were characterized by FTIR, WAXD, DSC and TG techniques. The results show that there are strong hydrogen-bond interactions in the OCS/PLLA blend films, and the interactions mainly appeare between the amine group of OCS and the carbonyl group of PLLA. The length of acyl sidechain of oligochitosan affects the hydrogen-bond interaction greatly, and the miscibility of the blend films. The shorter sidechains, the stronger hydrogen-bond interaction, as well as the better compatible of the OCS/PLLA blend films.
Key wordsorganic polymer materials    O-acylated oligochitosan    PLLA    blend film    hydrogen bond    miscibility
收稿日期: 2010-12-14     
ZTFLH: 

TB324

 
基金资助:

国家自然科学基金20574024, 福建省重点科技项目2009H0030, 福建省自然科学基金E0810019和2009J01029及科技部科技人员服务企业项目。

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