• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Takasaki Symposium on Radiation Processing of Natural Polymers November 23 and 24, 2000, JAERI, Takasaki, Japan >19 Preparation and Water Absorption of Cross-Linked Chitosan/Silk Fibroin Blend Films
【24h】

19 Preparation and Water Absorption of Cross-Linked Chitosan/Silk Fibroin Blend Films

机译：19交联壳聚糖/丝素蛋白共混膜的制备和吸水率

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Natural polymer blend films composed of chitosan and silk fibroin were prepared by varying the ratio of chitosan to silk fibroin, with and without glutaraldehyde as a crosslinking agent. The effects of the ratio of chitosan to silk fibroin and crosslinking agent on swelling behavior of the blend films were studied. For the swelling behavior, the blend films exhibited a dramatic change in the degree of swelling when immersed in acidic solutions. The degree of swelling of the films increased as the chitosan content increased; the blend film with 80 percent chitosan content had the maximum degree of swelling. it appeared that crosslinking had occurred in the blend films which helped the films to retain their three dimensional structure. In addition, FTIR spectra of the films showed evidence of hydrogen bonding interaction between chitosan and silk fibroin. For the effect of salt type, the films were immersed in various types of aqueous salt solutions, viz NaCl, LiCl, CaCl_2, AlCl_3, and FeCl_3. The films immersed in AlCl_3 and FeCl_3 aqueous solutions gave the maximum degree of swelling. The effects of AlCl_3 and FeCl_3 concentrations on swelling behavior were also investigated. It was found that the maximum degree of swelling of the films occurred at 1.0x10~(-2) M of AlCl_3 and FeCl_3 aqueous solutions.
机译：在有和没有戊二醛作为交联剂的情况下，通过改变壳聚糖与丝素蛋白的比例来制备由壳聚糖和丝素蛋白组成的天然聚合物共混膜。研究了壳聚糖与丝素蛋白和交联剂的比例对共混膜溶胀行为的影响。对于溶胀行为，当共混膜浸入酸性溶液中时，其溶胀度发生了显着变化。膜的溶胀度随着壳聚糖含量的增加而增加。壳聚糖含量为80％的共混膜具有最大的溶胀度。看来在共混薄膜中发生了交联，这有助于薄膜保持其三维结构。此外，薄膜的FTIR光谱表明壳聚糖和丝素蛋白之间存在氢键相互作用。为了获得盐类型的效果，将膜浸入各种类型的盐水溶液中，即NaCl，LiCl，CaCl_2，AlCl_3和FeCl_3。浸入AlCl_3和FeCl_3水溶液中的薄膜具有最大的溶胀度。还研究了AlCl_3和FeCl_3浓度对溶胀行为的影响。结果表明，AlCl_3和FeCl_3水溶液的最大溶胀度为1.0x10〜（-2）M。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号