溶解性

Novel chitosan derivative with long alky groups as the hydrophobic moieties and carboxymethyl groups as the hydrophilic moieties was synthesized. The chemical structure of N-octyl-O, N-carboxymethyl chitosan was characterized via FTIR, 1H NMR and elemental analysis. The physical properties were analyzed with wide angle X-ray diffraction and differential scanning calorimetry.

以天然可生物降解的壳聚糖为原料，通过在壳聚糖6位羟基上引入羧甲基，在2位氨基上引入疏水烷基链，制得N-辛基－O，N-羧甲基壳聚糖两亲性衍生物，分别用FTIR、1H NMR和元素分析等技术对其结构进行表征，用广角X射线衍射和差示扫描量热法对具物理性质进行分析，并考察其在各种溶剂中的溶解性能及其对难溶性药物的增溶能力。

Put 3g chitosan into 50mL 1% CH3COOH solution, after dissolved completely, added 9mL H2O2 into this solution and the reaction took place at temperature of 80℃ for 3 hours. Filtrated the hydrolysate and then concentrated liquid to 20mL, neutralized liquid with 1% NaOH, added 200mL ethanol to extract hydrolyte, 3000r/min eccentricity, and then we could got all water-soluble canary yellow chitosan by vacuum-freeze drying.

称取3g壳聚糖，于50mL1%冰乙酸溶液中充分溶解，加入9mL过氧化氢，在80℃条件下水浴反应3h，水解液抽滤，滤液在60℃浓缩至20mL左右，1%NaOH中和后，加入体积比为10：1左右的无水乙醇，沉淀水溶性壳聚糖，3000r/min离心，将糖液真空冷冻干燥后可得淡黄色完全水溶性壳聚糖。

Micropatterns polymer resin is also called the micropatterns or conglutinate, usually refers to the role of the light, can occur within a short time, and in the solvent, staining, hardened and adhesion performance changes in polymer materials.

感光性树脂又名感光性高分子或光敏树脂，通常是指在光的作用下，能在短时间内发生化学变化，从而引起在溶剂中的溶解力，着色能力、硬化和黏附性等性能改变的高分子物质。

A special photocurable acrylic cresol phenolic resin containing free epoxy group which can be dissolved in 1% Na2CO3 was synthesized, it preparation conditions were studied in detail.

摘 要：以含环氧基的光敏性丙烯酸酚醛环氧树脂为原料合成了一种可以在1％的碳酸钠溶液中溶解的光敏性酚醛环氧树脂，研究了该树脂的合成条件及工艺。

For inverse suspension polymerization, water soluble monomer is dispersed in oil continuous phase and initiated in aqueous phase.

反相悬浮聚合是将水溶性单体分散在油溶性介质中，水溶性引发剂溶解于水相中进行聚合的方法。

Methods Pre revision X－ ray films of 39 aseptically loosened hip prosthesis were observed. The incidence of liner osteolysis and expansile osteolysis around components in different regions was statistically determined according to different kinds of prosthesis and the width or area of osteolysis.

方法观察因无菌性松动行翻修术的39个国产人工髋关节的术前X线片，按关节类型分组统计假体周围不同区域衬性和膨胀性骨溶解的发生率，并测算溶骨带宽度或溶骨面积。

Resolution of infection may be followed by adhesive arachnoiditis with obliteration of subarachnoid space leading to obstructive hydrocephalus.

感染的溶解可能引起粘连性蛛网膜炎，粘连性蛛网膜炎使蛛网膜下腔变小甚至消失，最后造成梗阻性脑积水。

Oncosis is a special mode of non-apoptotic cell death,it is characterized by cellswelling,budding,organelle swelling,increased cellmembrane permeability and caryolysis.

胀亡是一种特殊形式的非凋亡性细胞死亡方式，它的特征性表现为细胞肿胀、起泡、细胞器肿胀、细胞膜通透性增加和核溶解。胀亡理论的提出为临床医学的发展提供了良好的机遇和理论指导。

This radiograph demonstrates osteolytic metastases in the pelvis in a patient with metastatic breast carcinoma.

乳腺癌病人X线片显示转移性病变，盆部的转移性肿瘤破坏溶解骨质，为溶骨性转移性骨肿瘤。

After dilution of the preparation of two pesticides can be difficult to dissolve some of the wettable powder or a small amount of pesticides, be more fully dissolved, the more evenly distributed so that more accurate measurement, not only to enhance the effect of medication, but also reduce the phytotoxicity of occurred, but also access to the original drug to reduce the risk of poisoning.

农药经过两次稀释配制，能够使某些不易溶解的可湿性粉剂或用量微小的农药，得到更充分的溶解，分布的更均匀，使计量更加准确，既提高用药效果，又减轻药害的发生，还能减少接触原药中毒的危险。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。