醚的

Production capabale of 2-phenoxy ethanol phenyl cellosolve and propylene glycol phenylate reach 10000 tons per year, it will become the biggest production base of alcoho ether in Asia.become a biggest production base of alcoholic and ether in Asia.

部分产品直接出口，创汇超百万美元。乙二醇苯醚，丙二醇苯醚年生产能力达到10000吨，成为亚洲最大的醇醚生产基地。

In the presence of Pt catalyst, polyhydrodimethylsiloxane reacted with allyl polyoxyethylenepolyoxypropylene ether (F-6) by hydrosilylation to form an intermediate polyether silicone, which further undergo phosphation reaction with phosphorous pentoxide, a kind of phosphate modified polyethersiloxane surfactant was prepared.

采用铂作催化剂，通过含氢硅油和端烯基聚醚（F-6）的硅氢化加成反应先制得聚醚硅油中间体，再将其和五氧化二磷进行酯化反应，制得了一种磷酸酯型有机硅表面活性剂。

DPODPS with melting point within three degrees can be obtained,purified by recrystal.2, 4,4\'-diphenyoxy-diphenyl sulfone was synthesized by reaction of phenol with bis (4-chlorophenyl)sulfone in tetramethylene sulfone in the presence of NaOH.

将其在亲电反应条件下和对苯二甲酰氯或间苯二甲酰氯共缩聚制得了二种聚芳醚砜醚酮酮树脂，用IR、DSC、TG、WAXD等对其结构和性能进行了表征，同时研究了聚合物在300±10℃空气中的氧化热稳定性。

Poly(aryl ether sulfone ether ketone ketone) with side carboxyl attached to the main chain was synthesized by Friedel-Crafts polycondensation of 4,4′-diphenyoxyl diphenyl sulfone with trimellitic anhydride chloride.

以4，4′-二苯氧基二苯砜，偏苯三酸酐酰氯为单体通过Friedel-Crafts亲电反应合成了主链芳环上带有羧基侧基的聚芳醚砜醚酮酮树脂。

Result: The anticancer active component includes: taxol 9.45%、cephalomanine: 9.63%、10- deacetylbaccatinⅢ: 22.64%、total flavonoids: 19.15%. 3. The preparation of Seiadopitysin control Methods: Take dry Ginkgo leaves and extracted three times by sonication with 95% EtOH, solutions were concentrated under vacuum, after defatting by petroleum benzin, the sample was extracted with EtOAc and the solutions were concentrated under vacuum.

金松双黄酮对照品的制备方法：取干燥银杏叶以95％乙醇超声提取3次，提取液合并，减压浓缩，石油醚脱脂后，用乙酸乙酯萃取，萃取液减压浓缩，经硅胶柱(6cm×80cm)层析，石油醚-乙酸乙酯(9∶1～5∶5)梯度洗脱，产物用甲醇多次冲淋，再以二甲基甲酰氨溶解，反复重结晶，得黄色粉末结晶。

Coordination polymers of dimethyl sulfide: Using P2S5 as deoxygenating agents, three coordination polymers containing dimethyl sulfide, [4(CH3SCH3)3]n (34) and n X = Cl(35, Br(36) have been successfully synthesized.

硫醚类化合物本文首次利用P2S5作为有机物的脱氧剂，在溶剂热条件下，成功地合成3种亚铜甲硫醚配位聚合物[4(CH3SCH3)3]n (34)和n X = Cl(35， Br(36)。

Two kinds of polyimide films were prepared based on the ODA and ODPA in NMP through two-step thermal or chemical imidization process and characterized by the cone and plate viscosimeter, GPC, FTIR, DSC, TGA and strain properties tests.

以4，4'-二胺基二苯醚和3，3'，4，4'-二苯醚四酸二酐为单体，采用两步法，分别经热亚胺化和化学亚胺化过程制备了两种聚酰亚胺薄膜，并对两种薄膜的性能进行了表征。

A study has been made on Synthesis of poly with diphenyl ether and terephthaloyl chloride as reactants, 1,2 dichloroethane as solvent, and aluminum chloride as catalyst.

研究了以1，2－二氯乙烷为溶剂，以无水三氯化铝／DMF为复合催化剂体系，在温和条件下，以二苯醚和对苯二甲酰氯为原料合成高分子量聚醚酮酮的方法。

Rhesus macaques were induced by isoflurane for endotracheal intubation. TheMACiv. and MACmhal were determined separately by means of "up and down".The concentrations of isoflurane in inspired gas, end tidal gas and artery blood were determined at 0.5MAC and 1 .0MAC, respectively.

猕猴5只，吸入异氟醚诱导后行气管插管，当呼气末浓度低于0.2％后，采用自身前后对照，&上下法&分别测定MAC_MAC_，测定0.5、1.0MAC的吸入气、呼气未气和动脉血异氟醚浓度。

Results showed that the optimum condition in carboxy methylation were: 15 percent sodium hydroxide , 20 % chloroacelic acid, alkalified 35℃, etherification 50℃, etherification time 120 min.

甜菜膳食纤维羧甲基化改性的最佳条件：15％氢氧化钠、20％一氯乙酸、35℃碱化温度、50℃醚化温度、2.0h醚化时间。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。