水醇的

The Dichondra Repens forst polysaccharides was extracted by ultrasonic wave in different temperatures (20, 40, 80, 100℃) and water-bath and followed by water extraction and ethanol precipitation with sevag method to excise the protein.

比较不同温度条件下超声水提－醇沉和加热回流水提－醇沉提取马蹄金多糖的效率，再分别用Sevag法去蛋白制得粗多糖，从而确定一种马蹄金多糖提取的最适方法。

It discovered that increasing alcohol is equal to reducing water in order to improve the isocyanate proportion reacted with alcohol.

研究揭示，为了提高异氰酸酯与醇反应的比例，增加竞争反应体系中醇浓度或降低水浓度是等效的。

The research indicated that under the compound use of hydroquinone and methyl quinone or independent use of phenothiazines or nitrogen oxygen free radical made the polymerization retarder, opposite-methyl-phenylsulfon made the esterification catalyst, toluol made the backflow including water condition, the acid mellowly compared to when it was 1.15, the production rate of the synthesis methylacrylic acid polyethylene glycol single methyl ether (400) ester may achieve 98.9%, was extremely similar to the overseas product functional group structure.

研究表明，在氢醌、甲醌复合使用或者单独使用吩噻嗪、氮氧自由基哌啶酮作阻聚剂，对甲苯磺酸作酯化催化剂、甲苯作回流带水的条件下、酸醇比为1.5时，合成的甲基丙烯酸聚乙二醇单甲醚(400)酯产率可以达到98.9%，与国外产品官能团结构十分相似。

Saturated small molecules such as glycerine, triethanolamine, saturated water-soluble macromolecules including corn starch and polyvinyl alcohol, and vinyl monomer are employed as modifiers for polymeric material surface.

本文首次利用Ce3+的紫外光敏特性，将其作为光催化引发剂，引发饱和小分子如单糖、多元醇，水溶性大分子如淀粉、聚乙烯醇，乙烯类单体如丙烯酸、丙烯酰胺、甲基丙烯酸甲酯等在聚合物基材表面的改性。

RESULTS The water extractive and cos tunolide could inhibit intestine peristalsis of the mice; each team had an obvious cholagogic effect compared with control team and alcohol extractive was stronger than water extractive, costunolide and dehydrocostuslactone were very strong in cholagogic and could be regarded as the main cholagogic constituents.

结果 ig给木香水提物 1.4 g/kg，4.2 g/kg）和木香烃内酯（9 mg/kg，27 mg/kg）对小白鼠的肠蠕动具有抑制作用；熊去氧胆酸（100 mg/kg ）、木香水提物组（540 mg/kg）、木香醇提物组（480 mg/kg）、木香烃内酯组（100 mg/k g）、去氢木香内酯组（100 mg/kg）与对照组相比，各组均有明显的利胆作用，且醇提物要比水提物作用强，木香烃内酯、去氢木香内酯利胆作用很强，可视为木香中的主要利胆成分。

The orthogonal experimental result showed that the optimum reaction conditions were as follows: citric acid 7.7 g, isoamyl alcohol 21.7 mL(the molar ratio of citric acid to isoamyl alcohol, 1:5); 1.0 g (4% of the total weight of raw material) NaHSO4H2O as catalyst; 25 mL dimethyl benzene as deaquation reagent; microwave irradiation time 15 mm; the yield of product was 83.2%(the rate of esterification was 95.1%).

通过正交实验，得到最佳的工艺条件如下：柠檬酸7.7g，异戊醇21.7mL（酸醇摩尔比为1：5）；一水合硫酸氢钠作催化剂，用量为1.0 g（为原料总质量的4%）；带水剂为二甲苯，用量为25mL；微波辐射时间为15min。

The preparation of grafted derivant of tertiary amine: it is prepared by the reacting of above (1) product and (2) product heated in water bath at 40℃ within 10min.

聚环氧氯丙烷乙二醇哌啶接支衍生物的制备：将上面制备的聚环氧氯丙烷乙二醇与0.25mol环氧丙基哌啶叔胺于40℃水浴条件下进行接支反应。

The n-butyl lactate was synthesied by the esterification of lactic acid and n-butyl alcohol in presence of ammonium ferric sulfate dodecahydrate NH4Fe(SO4)212H2O,and the factor influencing on the yield of reaction were discussed.

摘 要：在十二水合硫酸铁铵催化下，由乳酸和正丁醇发生酯化反应合成了乳酸正丁酯。实验考察了该催化剂催化酯化合成乳酸正丁酯的醇酸比、催化剂用量、反应时间、反应温度诸因素对酯化率的影响。

In the present study,a series of novel amphiphilic graft glycol chitosan were synthesized by introducing different hydrophobical groups.

本文选择乙二醇壳聚糖作为母体聚合物，通过引入不同的疏水基团，合成了一系列具有不同物理化学性质的两亲性乙二醇壳聚糖聚合物。

The synthesis of green oxane from isobutyl aldehyde and 2,2,4-trimethy-1,3- pentanediol catalysed by HY zeolite was studied. The effects of ratio of reactants,temperature,solvent,dosage and the recycling of catalyst were investigated.

研究了以异丁醛和2，2，4-三甲基-1，3-戊二醇为原料，HY沸石分子筛为催化剂合成了青叶口恶烷的反应，考察了醛醇比、反应时间、带水剂、催化剂用量与其循环使用性对该反应的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。