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首页> 外文期刊>Journal of Applied Polymer Science >Biodegradation Studies of Cellulose and Its Vinylic Graft Copolymers by Thermal Analysis and Mechanical Spectroscopy
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Biodegradation Studies of Cellulose and Its Vinylic Graft Copolymers by Thermal Analysis and Mechanical Spectroscopy

机译：纤维素及其乙烯基接枝共聚物的热分析和机械光谱生物降解研究

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摘要

Cotton cellulose with different % NaOH treatments and graft coplymers of cellulose prepared with vinyl acetate (AV) and methyl acrylate (MA), and Ce(IV) ion as an initiator were submitted to biodegradation conditions. Cellulose is a biopolymer consisting solely fo glucose units, and, consequently, is also easily biodegradable. Nevertheless, modified cellulose, for example, by graft copolymerization, shows an increased resistance to biodegradation. The aim of this work was to study by calorimetric and dynamic-mechanical analysis how the chemical modification fo cellulose affects its biodegradability. From the obtained results some information has also been deduced about the composition and mechanical behavior of the vinylic grafted chains.
机译：采用不同的NaOH处理百分比的棉纤维素和以乙酸乙烯酯（AV）和丙烯酸甲酯（MA）以及Ce（IV）离子作为引发剂制备的纤维素接枝共聚物经历了生物降解条件。纤维素是仅由葡萄糖单元组成的生物聚合物，因此也易于生物降解。然而，例如通过接枝共聚的改性纤维素显示出增加的抗生物降解性。这项工作的目的是通过量热和动态力学分析研究纤维素的化学修饰如何影响其生物降解性。从获得的结果中，还推断出一些关于乙烯基接枝链的组成和机械性能的信息。

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