水凝胶中壳聚糖的降解速率随取代度的升高而降低。
Degradation rate (Dr) of chitosan in the hydrogels decreased with increase of SD.
所得到的硫酸酯化半纤维素A产品取代度为0．36。
The substitution degree of sulfated hemicellulose A was 0.36.
研究了超声辅助作用对淀粉颗粒形貌和产品取代度的影响。
The effect of assistance of ultrasonic wave on granule appearance of corn starch and the substitution degree were investigated.
研究了高取代度羟乙基纤维素（H-HEC）的精制工艺。
The refining process of high-substitution hydroxyethyl cellulose (H-HEC) was researched.
通过试验确定了制备不同取代度甲基淀粉的工艺路线和参数。
Through experiments, finds processing route and parameters of preparing different ds methyl starch.
本文改进了用于测定羧甲基壳聚糖羧甲基取代度的灰分分析法。
In the paper, an ashing method was improved to characterize the degree of carboxymethyl substitution of carboxymethyl chitosan.
在此条件下可以快速获得较高取代度和粘度的羧甲基马铃薯淀粉。
Under these conditions, it is possible to quickly obtain carboxymethyl potato starch with higher degree of substitution and viscosity.
研究了高取代度羟丙基玉米淀粉溶液的流变学性质及其影响因素。
Rheological properties of hydroxypropylated corn starch with high molar substitution and its affecting factors were studied.
同时，取代度的高低可影响N -琥珀酰壳聚糖的溶解性和凝胶性。
It was also found that the degree of N-succinylation had effect on both the solubility and gelation of N-succinyl-chitosan.
研究了具有不同支链、取代度和胶凝温度的琼脂糖衍生物的流变行为。
The rheological behaviors of agarose derivatives with different branching chains, degree of substitute and gelling temperature were studied.
将半干法制备的高取代度阳离子淀粉应用于废纸脱墨浆作助留助滤剂。
The cationic starch with high substituted degree prepared by half-dry process was used as retention and drainage AIDS in deinked pulp.
取代度为0.030时对纯棉纱上浆性能优越，对涤棉纱上浆性能可行。
When substitution degree is 0.030, sizing property of cotton yarn is better and it is feasible for sizing polyester cotton yarn.
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。
With the determined parameters of synthesis, we can obtain CMS with high degree of substitution of 1.10 in one step carboxymethylation process.
采用干法工艺制备了不同取代度的羧甲基淀粉，测试了其浆液、浆膜性能。
A series of CMS with different substitution degree are synthesized by dry preparation, and size paste and films are also tested.
制备了取代度为0.04的阳离子玉米淀粉，然后用不同量的三氯氧磷交联。
Cationic corn starch at DS 0 04 was prepared, then cross-linked using various amounts of phosphorus oxychloride.
本发明工艺简单、操作程序简便、羧甲基菊粉取代度高、所得产品外观优良。
The process is simple, the operation process is simple and convenient, the carboxymethyl inulin has high substitution degree, and the obtained product has good appearance.
考察了碱用量、反应温度、反应时间、丙烯酰胺浓度对反应效率和取代度的影响。
The effects of sodium hydroxide, reaction temperature, reaction time, acrylamide concentration on the reaction efficiency and degree of substitution were studied.
以水乙醇混合溶剂作分散剂，采用半干法合成工艺，制备了高取代度阳离子淀粉。
The cation starch with high substitute degree was prepared based on the half dry technology, and the dispersing agent was the mixture of water and alcohol.
以取代度为目标，用正交实验方法确定了最佳工艺条件，制得较高取代度cmc。
The best technical conditions were determined to obtain higher substitution CMC by the orthogonal experiment.
当取代度和相对分子质量相同时，随着投料比的增加，载药量增加而包封率降低。
Higher feed ratio could lead to higher loading capacity and lower encapsulation efficiency under the same degree of substitution of cholesteryl moiety and molecular weights of parent pullulan.
用石油醚作为分散剂，干法制备低取代度阳离子淀粉，反应效率更高，产品更均一。
The low degree of substitution cationic starch was synthesized in dry process by using petroleum ether as dispersant. The reaction efficiency was more effective and the product was more homogeneous.
目的：研究不同取代度的羟丙基壳聚糖膜的生物相容性及其取代度对生物降解性的影响。
ObjectiveTo investigate the biocompatibility of hydroxypropylated chitosan film with diverse degrees of substitution and the influences of its degrees of substitution to biodegradability.
讨论了活化木薯淀粉与马来酸酐的摩尔比、反应温度、反应时间对酯化淀粉取代度的影响。
The effects of the molar ratio of activated tapioca starch to maleic anhydride, the reaction temperature and reaction time on degree of substitution of esterified starch were examined.
探讨了以异丙醇-水作溶剂，通过一次醚化，制备高取代度、高粘度羧甲基淀粉醚的最佳条件。
This paper discusses the optimum condition for preparing carboxymethyl starch with high degree of substitution and high viscosity by using the solution isopropanol-water through etherification.
硬脂酸淀粉酯的乳化稳定性随取代度、硬脂酸淀粉酯用量以及油水比的增加而增加，随温度的升高而降低。
The emulsifying stability of the starch stearate increases with the increase of DS, dosage of starch stearate, and ratio of oil to water, but decreases with the increase of temperature.
建议在现行SY 5093—92标准中增加酸化滴定法附则，用来测定水媒法生产的CMC产品的取代度。
It is suggested that acidizing treatment and titration should be appended to SY 5093 92 to determine the substitution degree of CMC produced with water-medium method.
本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。
Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.
本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。
Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.
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