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首页> 外文期刊>Journal of Applied Polymer Science >Development of a cashew nut shell liquid (CNSL)-based polymer for antibacterial activity
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Development of a cashew nut shell liquid (CNSL)-based polymer for antibacterial activity

机译：腰果壳液（CNSL）基聚合物的抗菌活性的开发

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A biobased polymer derived from cashew nut shell liquid (CNSL) as a renewable resource was investigated for use as an antibacterial material. CNSL is a mixture of aromatics containing cardanol as the main component and cardol and 2-methylcardol as minor components. CNSL composition analyses showed that the minor components (i.e., cardol and 2-methylcardol) in CNSL had higher contents of unsaturated structures than cardanol. These higher unsaturated contents promoted the thermal polymerization in the preparation of an epoxy CNSL prepolymer (ECNP). The biobased polymer film was fabricated by the reaction of amine compounds and ECNP without any organic solvent. The ECNP film took less than 2.0 h to reach a hardened dry condition at room temperature because of the crosslinking reaction between epoxy and amine groups. The antibacterial activities of the biobased polymer against Escherichia coli and Staphylococcus aureus were evaluated. CNSL showed antibacterial activity against S. aureus, whereas epoxy CNSL and ECNP alone showed no significant antibacterial activity against E. coli or S. aureus. This indicated that the antibacterial activity was based on the phenolic and catechol hydroxyl groups of CNSL. In addition, a biobased polymer film derived from CNSL and diamine showed antibacterial activity against both E. coli and S. aureus, even with alcohol conditioning. This suggested that the antibacterial activity was certainly fixed in the structure of the ECNP-based polymers after the standard antisepsis treatment in medical facilities. Therefore, this biobased polymer could be useful in antibacterial materials as a coating and resin for health care applications. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42725.
机译：研究了腰果壳液（CNSL）作为可再生资源的生物基聚合物用作抗菌材料。 CNSL是包含腰果酚为主要成分和腰果酚和2-甲基心果为次要成分的芳烃混合物。 CNSL组成分析表明，CNSL中的次要成分（即腰果酚和2-甲基心醇）的不饱和结构含量高于腰果酚。这些较高的不饱和含量促进了环氧CNSL预聚物（ECNP）制备中的热聚合。该生物基聚合物膜是通过胺化合物和ECNP在没有任何有机溶剂的情况下反应制得的。由于环氧基和胺基之间的交联反应，ECNP薄膜在不到200小时的时间内即可在室温下达到硬化干燥条件。评价了生物基聚合物对大肠杆菌和金黄色葡萄球菌的抗菌活性。 CNSL对金黄色葡萄球菌具有抗菌活性，而环氧CNSL和ECNP单独对大肠杆菌或金黄色葡萄球菌则无明显抗菌活性。这表明抗菌活性基于CNSL的酚和邻苯二酚羟基。另外，衍生自CNSL和二胺的生物基聚合物薄膜即使对酒精进行调理，也表现出对大肠杆菌和金黄色葡萄球菌的抗菌活性。这表明在医疗机构中进行标准的防腐处理后，抗菌活性肯定会固定在基于ECNP的聚合物的结构中。因此，这种生物基聚合物可在抗菌材料中用作卫生保健应用的涂料和树脂。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42725。

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