| 1. | Study on the cationic starch with high degree of substitution used as flocculant
高取代度阳离子淀粉用作絮凝剂的研究 |
| 2. | The effects of substitution degree on retrogradation and anti - mycotic were less
取代度的变化对沉降性和抗霉菌能力影响不大。 |
| 3. | The influence of the main reaction conditions on the substitution degree was studied , and the mol . structure of the product was detd
探讨了主要反应条件对产物取代度的影响，并对产物的分子结构进行了表征。 |
| 4. | The results showed that the dosage of wet - method prepared was more than that of extrusion if the modified starch got the same degree of substitution
结果表明：要得到相同取代度的变性淀粉，湿法的原料消耗量远远大于挤压法。 |
| 5. | Cellulose acetates with different substitution degrees were synthesized with wood pulp as raw material and dodecylbenzenesulfonic acid as catalyst
摘要以木浆为纤维素原料、十二烷基苯磺酸为催化剂，制备了一系列不同取代度的纤维素醋酸酯。 |
| 6. | A series of n - phthaloyl - chitosan with different degrees of substitution were synthesized rapidly in homogeneous solution at room temperature
摘要通过邻苯二甲酸酐与壳聚糖在室温、均相条件下快速反应，制备一系列取代度不同的n -邻苯二甲酸化壳聚糖。 |
| 7. | The influences of reaction temperature and time , acetic anhydride - cellulose wt ratio and catalyst amt . etc . on the substitution degree and yield were investigated
研究了反应时间、温度、醋酸酯与纤维素质量比、催化剂用量等对取代度和产率的影响。 |
| 8. | The results showed that the substitution degree ( ds ) increased but the yield decreased with increasing the reaction temperature and time , the acetic anhydride - cellulose wt ratio and catalyst concn
结果表明：随着反应时间、反应温度、醋酸酯与纤维素质量比和催化剂用量的提高，其取代度ds增大，但产率降低。 |
| 9. | With substitution degree added , the colocasia esculenta schott starch phosphate ester was easier to gelatinize , the tolerance to salt and sucrose increased , the clarity first increased and then decreased , paste viscosity first decreased and then increased
随着取代度的增加，香芋淀粉磷酸酯的糊化变得容易，耐盐和耐糖能力提高、透明度先增后减、糊粘度则先减后增。 |
| 10. | Abstract : highly substituted cationic starch was prepared by microwave radiation in dry process . in this preparation , starting materials mixed with high speed stirres , potassium hydroxide used as catalyst and discontinuous heated by microwave radiation at temperature 60 85 to give 0 35 0 50 degree of substitution cationic starch the conversion of cationic reagent reached 95 the product is soluble in water it is pasted when it meets water
文摘:微波干法制取高取代度的阳离子淀粉，用高速搅拌机混合物料，氢氧化钾做催化剂，间歇式微波介电加热温度不超过85 ，阳离子试剂的转化率可达95 ，产品取代度0 35 0 50 ，常温下遇水糊化，在水中有较好的溶解性。 |
