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- By control of cation, we can get cationstarchwith different degree of substitute. 控制阳离子化反应条件,就可获得不同取代度的阳离子淀粉。
- A new colloid titration method for analyzing the degree of substitute (DS) of amphoteric starch with carboxylic and quaternary ammonium groups is first developed in this work. 摘要首次提出了用胶体滴定法测量季铵盐羧酸型两性淀粉的阴、阳离子取代度。
- She shows a high degree of skill in her work. 她在工作中表现出高度的技巧。
- A private car gives a much greater degree of comfort and mobility. 私人小汽车能给人很大的舒服和机动性。
- The highest degree of quality or excellence. 头等质量或优秀程度最高的
- The results showed that the CMC value of the products was decreasing as the degree of substitution was getting higher. 结果表明,临界胶束浓度(CMC值)随着取代度的提高而降低,较高取代度的淀粉样品具有良好的表面活性。
- Our teacher has a high degree of responsibility. 我们老师有高度的责任感。
- Degree of substitution(DS) of carboxymethylinulin was analysed by spectrophotometric titration. 用光度滴定法测定了羧甲基菊粉的取代度。
- The influence of reaction conditions on the degree of substitution of acetylated starche was investigated. 以玉米淀粉为原料,醋酸酐为酯化剂,甲烷磺酸为催化剂,制备高取代度淀粉醋酸酯。
- The results showed that the water reducing ratio of sulfonated starch is increased with the degree of substitution(DS). 以氯磺酸为磺化试剂,半干法制备了磺化淀粉,并对其用作水泥减水剂的性能进行了系统的研究。
- There is a degree of resemblance between the two boys. 这两个男孩有某些相似之处。
- Spectrophotometry and potentiometric titration are common methods to detect the degree of substitution of starch phos-phate ester. 分光光度计法和电位滴定法是测定淀粉磷酸酯取代度的常用方法。
- The relationship between the technological parameters and the degree of substitution of starch phosphate and caramel color was discussed. 同时，探讨了淀粉磷酸酯的取代度和焦糖色素的色率与操作参数之间的关系。
- The effect of HPS was better than that of octadecyl acrylate.The higher the degree of substitution, the higher the salt tolerance. 用羟丙基淀粉代替原淀粉的共聚产物对提高耐盐性效果更明显，取代度越高耐盐性能越好；
- The degree of sharpness of a cutting blade. 锋利程度切割刀锋的锋利程度
- Sodium carboxymethly starches(CMS)with high degree of substitution(DS) was synthesized from starch and chloroacetic acid in this paper. 以淀粉、氯乙酸为原料,异丙醇为溶剂合成羧甲基淀粉醚(CMS)。
- With the determined parameters of synthesis, we can obtain CMS with high degree of substitution of 1.10 in one step carboxymethylation process. 在所确定的最佳反应条件下，能制备取代度为1．10的羧甲基淀粉醚。
- Keywords colloid titration;amphoteric starch;degree of substitute; 胶体滴定法;两性淀粉;取代度;
- She has an unusual degree of self-reliance and mental toughness. 她有非凡的自立的精神和坚韧不拔的精神。
- In order to improve the serviceability of modified starch in sizing wool warp yarns, a series of starch carbamate with different degree of substitution were prepared. 摘要为提高变性淀粉浆料在毛纱上浆中的应用性能，制备了一系列具有不同取代度的氨基甲酸酯淀粉。
