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首页> 外文期刊>Journal of Polymers and the Environment >Environmentally Friendly Novel Maleated Poly(vinyl alcohol) Grafted 1,4-Butanediol Modified with Biopolymer for Encapsulation of Capsaicin
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Environmentally Friendly Novel Maleated Poly(vinyl alcohol) Grafted 1,4-Butanediol Modified with Biopolymer for Encapsulation of Capsaicin

机译：生物聚合物改性的环保新型马来酸接枝1，4-丁二醇接枝辣椒素

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摘要

Nowadays, hydrogels are widely used in many fields, for instance as biosensors, in tissue engineering and in agriculture due to their high swelling behavior in water and their softness. The objective of this work was to study the preparation and physical properties of maleated poly (vinyl alcohol) (PVAM)-graft-butanediol (BDO) (PVAM-graft-BDO) using K2S2O8 as an initiator. The highest grafting efficiency of 92% was found at 7:3 PVAM-graft-BDO. The swelling behavior of the PVAM-graft-BDO increased with an increasing BDO content. The highest swelling ratio of the PVAM-graft-BDO of 250% was found at 7:3 PVAM:BDO. Moreover, the maximum tensile strength of the PVAM-graft-BDO was observed at 9:1 PVAM:BDO. The elongation at break of the PVAM-graft-BDO was improved by the addition of natural rubber-graft-cassava starch (NS). The PVAM-graft-BDO was used as a polymer matrix for the encapsulation of capsaicin. The results showed that the rate of capsaicin release from the polymer matrix in a water medium was controlled by the BDO portion and the NS content. After use, it was easily degraded in natural soil.
机译：如今，水凝胶由于其在水中的高溶胀性能和柔软性而广泛用于许多领域，例如作为生物传感器，在组织工程和农业中。这项工作的目的是研究使用K2S2O8作为引发剂的马来酸化聚乙烯醇（PVAM）-接枝丁二醇（BDO）（PVAM-接枝-BDO）的制备和物理性能。在7：3 PVAM-graft-BDO处发现最高的嫁接效率为92％。 PVAM接枝BDO的溶胀行为随BDO含量的增加而增加。发现在7：3 PVAM：BDO下，PVAM接枝BDO的最高溶胀率为250％。此外，在9：1的PVAM：BDO下观察到了PVAM-接枝的BDO的最大拉伸强度。通过添加天然橡胶接枝木薯淀粉（NS），可改善PVAM接枝BDO的断裂伸长率。 PVAM接枝BDO用作辣椒素胶囊的聚合物基质。结果表明，辣椒素在水介质中从聚合物基质中释放的速率受BDO部分和NS含量的控制。使用后，它很容易在天然土壤中降解。

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