...
首页> 外文期刊>Química Nova >Estudo das propriedades e biodegradabilidade de blendas de poliéster/amido submetidas ao ataque microbiano
【24h】

Estudo das propriedades e biodegradabilidade de blendas de poliéster/amido submetidas ao ataque microbiano

机译:聚酯/淀粉共混物受微生物侵袭的性质和生物降解性研究。

获取原文
           

摘要

This work deals with the biodegradation of blends of poly(beta-hydroxybutyrate)/starch and poly(beta-hydroxybutyrate-co-hydroxyvalerate)/starch. The blends were obtained by evaporation of the solvent in the mixture of the polymers in chloroform. Tests were carried out in presence of micro-organisms which acted as biodegradation agents. The blends were consumed as carbon substrate and the production of CO2 was evaluated in the process. In addition, the polyesters' mechanical properties were reduced by the incorporation of starch in its structure. (1H) NMR and infrared spectroscopy detected some characteristic polyester degradation groups in the polyesters' chemical structure, thus confirming the alteration suffered by it.
机译:这项工作涉及聚(β-羟基丁酸酯)/淀粉和聚(β-羟基丁酸酯-共-羟基戊酸酯)/淀粉的混合物的生物降解。通过蒸发聚合物在氯仿中的混合物中的溶剂来获得共混物。在充当生物降解剂的微生物的存在下进行测试。共混物作为碳基质消耗,并在该过程中评估了CO2的产生。另外,通过在其结构中掺入淀粉降低了聚酯的机械性能。 (1H)NMR和红外光谱法在聚酯的化学结构中检测到一些特征性的聚酯降解基团,从而证实了其遭受的改变。

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