共查询到19条相似文献,搜索用时 78 毫秒
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超强吸水聚合物的研究进展 总被引:2,自引:0,他引:2
介绍了超强吸水聚合物的国内外研究开发情况。综述了其制备方法和应用。结合超强吸水聚合物的市场潜力与成本的分析 ,对超强吸水聚合物的发展前景作了展望。 相似文献
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以自制的马来酸十六醇酯钠盐(SHM)为乳化剂、甲基丙烯酸甲酯(MMA)和甲基丙烯酸缩水甘油酯(GMA)为单体,改变单体配比,利用乳液聚合方法合成了4种带环氧基的纳米聚合物(NPs),NPs经与三甲胺盐酸盐阳离子化反应制得4种表面同时带正电荷和负电荷的两性聚合物微粒(CNPs)。对聚合物微粒的粒径和zeta电位进行了研究,用烧瓶振荡法研究了CNPs对大肠杆菌和金黄色葡萄球菌的抗菌性。结果表明,单体配比对NPs的粒径影响很小;随GMA用量增加,CNP的粒径增大,zeta电位上升;CNPs对大肠杆菌和金黄色葡萄球菌都有很好的抗菌性。 相似文献
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苯并菲类材料能够组装为柱状相,因此在光电材料、信息存储以及功能分子膜中得以广泛应用。主要是探讨苯并菲类液晶高分子合成及应用,希望能够对相关人员起到参考性价值。 相似文献
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Ana Maria Carmona-Ribeiro Letícia Dias de Melo Carrasco 《International journal of molecular sciences》2013,14(5):9906-9946
Cationic compounds are promising candidates for development of antimicrobial agents. Positive charges attached to surfaces, particles, polymers, peptides or bilayers have been used as antimicrobial agents by themselves or in sophisticated formulations. The main positively charged moieties in these natural or synthetic structures are quaternary ammonium groups, resulting in quaternary ammonium compounds (QACs). The advantage of amphiphilic cationic polymers when compared to small amphiphilic molecules is their enhanced microbicidal activity. Besides, many of these polymeric structures also show low toxicity to human cells; a major requirement for biomedical applications. Determination of the specific elements in polymers, which affect their antimicrobial activity, has been previously difficult due to broad molecular weight distributions and random sequences characteristic of radical polymerization. With the advances in polymerization control, selection of well defined polymers and structures are allowing greater insight into their structure-antimicrobial activity relationship. On the other hand, antimicrobial polymers grafted or self-assembled to inert or non inert vehicles can yield hybrid antimicrobial nanostructures or films, which can act as antimicrobials by themselves or deliver bioactive molecules for a variety of applications, such as wound dressing, photodynamic antimicrobial therapy, food packing and preservation and antifouling applications. 相似文献
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Biocides are widely explored in the design of materials and surfaces in order to address a variety of problems, such as biodeterioration, biofouling or infections. Materials with migrating biocides are under scrutiny due to potential health and environmental risks, as well as instability of the antimicrobial activity in time. This paper focuses on the onium‐functionalised polymers in the design of bioactive materials and surfaces, which are capable to kill micro‐organism or efficiently inhibit their growth on contact. The review highlights synthetic and processing routes towards the integration of onium functionalities into solid materials. The influence of materials structure on the antimicrobial activity and possible applications are discussed.
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抗菌性高分子材料的研究进展 总被引:3,自引:0,他引:3
简要介绍了各类抗菌剂的抗菌机理,并从高分子基材与抗菌剂共混、表面改性和分子组装抗菌化技术三方面综述了近5年来国内外抗菌高分子材料的研究进展。 相似文献