ethers

Its ether extract contains Isopsoralen and Bergapten.

香豆素类应为五指毛桃的有效部位之一。

He lost consciousness at the first whiff of ether.

他一嗅到乙便失去了知觉。

One new solvent free impregnating resin based on unsaturated polyester with modified diphenylene ether is prepared.

以改性二苯树为原料，合成了一种新颖不饱和聚酯型无溶剂浸渍绝缘漆。

In this paper, the cedrol methyl ether was synthesized by sodamide method.

本文采用氨基钠法合成甲基柏。

Polybrominated Diphenyl Ether.

种物质.

In this thesis, the reaction of aldehydes with dimethyl -- dichlorosilane producingdimethylsilyl bis -- enol ethers has been studied.

本文对醛和二甲基二氯硅烷反应合成二甲硅基双烯醇进行了研究。

Behaviors of armeen,tertiary amine,poly-amide and ether amide in floatation of kaolinite,pyrauxite and illite are studied.

研究了肪伯胺、叔胺、多胺和胺四种药剂对高岭石、叶腊石、伊利石的浮选行为,结果表明捕收序为多胺>叔胺>胺>肪>伯胺。

No osmyl and no taste.Soluble in Benzene,Acetone,C2H4Cl2,CS2,toluene,party soluble in alcohol,diethyl ether,insoluble in water,gasoline.

溶于丙酮、苯、甲苯、二硫化碳、二氯乙烷，微溶于乙醇和乙，不易溶于水和汽油。

Structure, mechanics, electricity, calorifics, radialization and chemicalproperties are reviewed for polyperfluoroethylene-propylene and tetrafluoroethylene perfluoroalkyl vinyl ether copolymer.

分别阐述了聚全氟乙丙烯和四氟乙烯全氟代烷基乙烯基共聚物的结构和学热学、辐射、化学性。

For polysaccharide synthescs,ring open-ing polymerizatlon of 1,6-,1,4-,1,3-,and 1,2-anhydro sngars,and polycondensation of cya-noethylidene trityl ether sugars are described.

对多糖的合成主要介绍了1，6-、1，4-、1，3-、1，2-缩水内糖的阳离子聚合制备均聚多糖，及用糖原酸酯衍生物通过缩聚反应制备多糖。

The bulk and solution photopolymerization of vinyl butyl ether were studied using diph-enyl-4-thiophenoxyphenyl sulfonium salt (DPTS) as photoinitiator.

以二苯基-4-苯硫基代苯基硫鎓盐(DPTS)为光引发剂,研究了乙烯基正丁的本体和溶液光聚合。

Ethylene glycol monoether acetate are synthesized from acetic acid and ethylene glycol monoethyl ether with supported phosphotungstic acid catalyst.

以醋酸和乙二醇单乙为原料,活性白土负载磷钨酸作为催化剂,合成了乙二醇单乙醋酸酯。

In this paper ten lactonic crown ethers weresynthesized, of which seven were new compounds.Theirstructures were confirmed by EA,IR,1HNMR andMS analysis.

合成了10个内酯型冠化合物，其中7个冠是新化合物，其结构均由元素分析，及红外、核磁、质谱分析证实。

The Applications of Arylboronic Acid in biaryl synthesis,synthesis of diaryl ethers,synthesis of aromatic amines and catalytic addition reactions were summarized.

综述了芳基硼酸在联芳基合成、二芳基合成、芳香胺合成和催化加成反应中的应用。

Four new materials,such as carbon suspension,sodium sulfonate of polyoxyethylene allyl glycidyl nonyl phenyl ether,vanillyl alcohol,vanillin,etc,in lead-acid storage batteries were reviewed.

综述了铅酸蓄电池用碳素悬浊液的制备与作用方式以及在铅酸蓄电池使用聚氧化乙烯烯丙基缩水甘油基壬基苯的硫酸酯钠盐、香草醇和香草醛的目的及作用机理。

A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

通过一元羧酸和二乙烯基的反应,我们得到了一种新颖的酯缩醛结构分子玻璃。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

BMI resin systems modified by allyl methylphenol ether,allyl methylphenol, allyl methol phenol and diallyl bisphenol A, respectly have been studied.

对以烯丙基甲酚、烯丙基甲酚、烯丙基甲酚和二烯丙基双酚A改性BMI所得树体系进行了研究。

Isobornyl ethyl ether was prepared by ethoxylation of camphene with absolute ethanol in the presence of DCP heat-resistant ion exchange resin.

工业莰烯在耐高温离子交换树DCP催化作用下与无水乙醇反应生成了异龙脑基乙。

In this paper,a type of kilomega bps chips group for ether net which surpasses the standards by large abundance is presented.

介绍了一种性超越规范很宽裕量的千兆位以太网芯片组。