水醇的
- 与 水醇的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The influence of polymerization degree and alcoholysis degree of polyvinyl alcohol, the ratio of Span - 20 to Tween - 20, the amount of polyvinyl alcohol, the amount of water - soluble inhibitor, pretreatment and after - treatment processes and et al on the hydrophobic property and stability of the water -repellent is investigated.
研制了一种以聚乙烯醇、2种非离子表面活性剂——Span-20和Tween-20、水溶性缓蚀剂等为原料的水性憎水剂;考察了聚乙烯醇的聚合度和醇解度、2种非离子表面活性剂之间的配比、聚乙烯醇含量、乳化剂含量、水溶性缓蚀剂含量、预处理和后处理工序等因素对憎水剂憎水效果及稳定性的影响。
-
When the concentration of alcohol is same with the water, there is 77.89% consumed isocyanate reacted with water. When the concentration of water is 2 times as alcohol, more than 90% isocyanate reacted with water.
当体系中醇与水的浓度相同时,反应了的异氰酸酯基中有77.89%与水反应;当体系水的浓度是醇的2 倍以上时,将有90%以上的异氰酸酯基与水反应。
-
Membrane affinity quantified by IAM and liposome/buffer systems was a more efficient predicator of α values than hydrophobicity from n-octanol/buffer system. Consequently, not only hydrophobic force but also attractive polar extra-interactions involved in the binding to IAM and liposomal membranes but not in an n-octanol phase, ascribed to the binding process within AM. The binding to ordered lipid membrane in the larger part determined drugs'binding to AM intracellular compositions, and the ordered phospholipid plasma membrane was a potential site for drugs'binding in AM.
脂质体/水系统和磷脂膜色谱所测定的膜亲和性比正辛醇/水系统的疏水性更好的预测巨噬细胞内药物的α值,因此包含在磷脂膜色谱中但并不体现在正辛醇/水系统中药物与磷脂膜之间的额外吸引性极性作用力对药物在细胞内结合有着重要贡献;药物与有序磷脂膜的结合在很大程度上决定着药物与巨噬细胞内成分的结合,有序磷脂分子膜可能是巨噬细胞内部潜在的结合部位。
-
It has offered the information of the boiling points of the chemical compounds, and it is helpful to reutilize them after their separation by rectification. The results showed that the main compounds of the heavy cut of terpineol were longifolene and βcaryophyllene. They are from the raw material, terpinene oil.
松油醇的合成工艺方法主要有两种:一种是一步法,即松节油在酸催化作用下直接进行水合反应生成松油醇;另一种是二步法,即松节油首先在酸催化作用下水合成萜二醇,再经稀酸催化脱水生产松油醇。
-
The results showed that in acetone and ethanol, solubilities of 3, 28-di-O-glutaryl-betulin were 33.52 and 22.65 times of those of betulin respectively; In water, solubility of 3, 28-di-O-glutaryl-betulin was 0.0021 g (100 mL water), and in PBS, solubility of 3, 28-di-O-glutary-betulin was 0.0015 g (100 mL PBS), the hydrophilicity of 3, 28-di-O-glutaryl-betulin was significantly increase.
结果表明,在丙酮和无水乙醇中,桦木酐戊二酸酯的溶解度是桦木醇的33.52和22.65倍;在水中,桦木醇戊二酸酯的溶解度为0.0021g(100mL水);在PBS中,桦木醇戊二酸酯的溶解度约为0.0015g(100mL PBS),目标产物的亲水性有了显著的改善。
-
The effect of short chain monohydric alcohols (ethanol, n-butanol) and dihydric alcohols (ethyleneglycol, 1,4-butanediol) on the aqueous two-phase system of cationic and anionic surfactants is studied.
研究了短链一元醇和二元醇(乙二醇、1,4-丁二醇)对正负离子表面活性剂混合溶液(十二烷基硫酸钠-十六烷基三甲基溴化铵-水)双水相的影响。
-
The results indicated that both binary interactive parameters of water/isobutanol system from this work and the parameters of water/ethanol from literature can be used to precdict the liquid-liquid equilibria of water/ethanol/isobutanol. But the parameters of ethanol/isobutanol from the literature were not appropriate for the prediction. Furthermore, the model parameters from 30℃ can can be used to predict the liquid-liquid equilibria under 35 ℃. The model parameters of water/isobutanol are independent on the temperatures, so constant parameters irrelative to temperature can meet prediction accuracy. Othmer-Tobias/Bancroft equation was also used to fit the liquid-liquid data of water/ethanol/isobutanol system, but it didnt possess the performance of predicting the liquid-liquid equilibria.The partition coefficients of dipotassium glycyrrhizinat were determined in the liquid-liquid two-phase system of water/ethanol/isobutanol and corrected by experiential equation.
结果表明:由本文的二元液液相平衡实验数据关联得到的水+异丁醇体系的相互作用参数和文献上由二元气液相平衡数据关联得到的水+乙醇体系的相互作用参数都具有预测三元液液相平衡关系的能力,而文献上由二元气液相平衡数据关联得到的乙醇+异丁醇体系的相互作用参数不具有预测三元液液相平衡关系的能力;可以用从30℃三元液液相平衡数据关联回归得到的模型参数来预测35℃时的液液相平衡关系;水+异丁醇的相互作用参数与温度关系不是很密切,计算时取与温度无关的常数即能满足关联精度要求;Othmer-Tobias和Bancroft经验方程可用于水+乙醇+异丁醇两相体系的液液相平衡关系的关联计算,但这类经验方法并不具有预测能力。
-
The cause of hard agglomerate formation and its effect on sinterability were investigated. The water-washed ZrO〓-Y〓O〓 powders were found to be greatly made up of hard agglomerates. The ethanolwashed powders also contained a few of hard agglomerates because of uneffective dehydration. Beside, ethanol volatilizes in advance of water during drying because ethanol has a lower boiling point than water, so steric effects of ethanol won't act. However, nearly no hard agglomerate formed in the azeotropic distilled powders, because of effective dehydration and higher boiling point for n-butanol.
研究指出,水洗工艺所得ZrO〓-Y〓O〓粉末几乎完全由硬团聚组成;乙醇洗涤工艺的脱水效果不是很好,并且由于乙醇的沸点比水低,以致在干燥过程中残留乙醇比水先挥发,乙醇的空间位阻效应不能有效地发挥作用,因此,仍然可以导致产生一定量的硬团聚;而共沸蒸馏工艺的脱水效果最佳,且正丁醇的沸点比水高,干燥时残留正丁醇比水后挥发,从而正丁醇的空间位阻效应可有效地发挥作用,因此避免了在煅烧过程中形成Zr-O-Zr键,即共沸蒸馏粉末中不含硬团聚。
-
According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.
根据本实验室前期研究结果可知,反式-1,2-环己二醇是在酸性和大量水存在的条件下得到的,为了把反式-1,2-环己二醇从反应液中萃取出来,本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯,需要获得反式-1,2-环己二醇在这些酯类与水混合溶剂中的溶解度数据,因而对反式-1,2-环己二醇进行相关固液相平衡的研究是非常迫切和必要的。
-
The high selective resolution system was constructed with the mixture of isooctane with octanol acting as reaction medium and octanol as acyl acceptor.
建立了异辛烷/正辛醇的混合溶剂为反应介质、正辛醇为酰基受体的高度选择性的酯化拆分体系,并利用水合盐缓冲技术使反应过程中水活度保持恒定。
- 推荐网络例句
-
By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.
到它被攻陷的时候,里面多数的犯人是写了反对政府贪污文章的作家。
-
The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.
在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色,卵在发育96h后卵基本全部孵化。
-
There was a conflict between plebs and patricians in ancient Rome in 494BC.
在公元前494年,罗马发生了一次平民反对贵族的斗争。