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- Lignin are natural polymers with inertness of reaction. 木质素是天然高分子聚合物,具有一定的化学反应惰性。
- Lower molecular weight carbohydrate are often obtained by depolymerization of the natural polymers. 低分子量碳水化合物,经常由天然多糖的解聚作用获得
- Long-chained charged synthetic and natural polymers can act to destabilize colloids by forming a bridge between one colloid and another. 长链带电的合成聚合物和天然聚合物,能够在胶体间搭桥而使胶体不稳定。
- As a rich resource and extensive use of natural polymers, the market prospects of chitosan and its derivatives is very significant. 作为一种资源丰富、用途广泛的天然高分子化合物,壳聚糖及其衍生物的市场前景十分可观。
- Chitosan is one of the most abundant natural polymers, this biopolymer has useful functional groups such as hydroxyl and amine, so it can interact with metal ions. 摘要壳聚糖是一种天然高分子,分子中含有大量的氨基和羟基,对金属离子有很好的吸附能力。
- Over the past decade, considerable efforts have attempted to develop scaffolds for tissue engineering, using biodegradable and biocompatible synthetic or natural polymers. 回复: 在过去十年中,相当大的努力,试图 开发支架组织工程,利用生物降解 和生物相容性合成或天然聚合物。
- This natural polymer is FAST hydrating dispersible guar gum. 这是一种快速溶胀型天然瓜尔胶多聚糖。
- Chitosan is one of the most abundant natural polymers,This biopolymer has useful functional groups such as hydroxyl and amine,so it can interact with metal ions. 壳聚糖是一种天然高分子,分子中含有大量的氨基和羟基,对金属离子有很好的吸附能力。
- The recent advances in biodegradable polymers for medical applications were reviewed according chemical synthetic, biosynthetic and natural polymers respec tively. 对目前医用可生物降解高分予材料的研究及应用状况分化学合成、天然和生物技术合成三类作了综述。
- Water-absorbing polymers were prepared by graft-copolymerization and saponification of acrylonitrile with natural polymers, such as starch and cellulose. 丙烯腈与天然高分子(如淀粉和纤维素)通过接枝共聚和皂化反应制备吸水高分子。
- Therefore, a very significant challenge is to modify natural polymers to take advantage of their useful barrier properties and find ways to reduce their leakiness toward water vapor. 因此,一个非常重要的挑战是要修改天然聚合物,以利用其有益的阻隔性能,并设法减少其泄漏的水蒸汽。
- The research team chose to study natural polymers because they make excellent drug-carriers;they are non-toxic, biodegradable and biocompatible, therefore the brain will not reject them. 研究小组选择研究天然聚合体,因为它们是最好的药物“输送容器”,而且它们是无毒的、可以进行生物分解的、不会引起排斥反应的,因此大脑不会对它们产生抵制。
- Wool, an abundant natural polymer,is a kind of polyamide derived from cystine. 以天然生物高分子羊毛为载体制备了羊毛-钯络合物催化剂。
- Wood is a natural polymer in the same manner that polymers of ethylene are joined to form polyethylene , glucose monomers polymerize in wood to form cellulose polymers . 木材是天然的聚合物。与乙烯聚合体结合形成聚乙烯的方式一样,葡萄糖单体与木材聚合可以形成维生素聚合物。
- Natural polymer flocculation agents have been paid widely attention to for their advantages that traditional flocculation agents and other synthetic polymers had not possessed. 天然高分子絮凝剂具有传统絮凝剂和其他合成聚合物不具备的优点,现已得到国内外的广泛重视。
- Chitosan is an ideal microencapsulation material because it is a bio-degradable natural polymer without toxicity. 壳聚糖无毒、无害,易于生物降解,不污染环境,是一种理想的微胶囊壁材。
- Natural polymer used in liquor-making industry included amylum, cellulose, hemicellulose and protein etc. 制酒行业中应用的天然高分子有淀粉、纤维素、半纤维素及蛋白质等;
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。