乙酯基

Microwave; polymerization; Methacrylic acid; 2- ethyl ester; Allylthiourea; Polymer-Metal Complexes; catalyze; adsorption.

微波； 聚合；甲基丙烯酸N； N-二甲胺乙酯；烯丙基硫脲；高分子金属配合物；催化；吸附

ResultsThe results show that the copolymerization of DMAEMA and DADMAC is an azeotropic compound.

结果 2-甲基丙烯酸二甲胺乙酯和二烯丙基二甲基氯化铵为共沸化合物。

Result: Seven phenolic compounds were identified as rosmarinic acid(1),gallic acid(2),gentisic acid 5-O-(6′-O-galloyl)-β-D-glucopyranoside(3),caffeic acid(4),p-coumaric acid(5),ethyl caffeate(6) and acteoside(7),respectively.

结果：分离得到7种酚类化合物，经结构鉴定为：迷迭香酸(1)，没食子酸(2)，龙胆酸5-O-(6′-O-没食子酰基)-β-D-吡喃葡萄糖苷(3)，咖啡酸(4)，对香豆酸(5)，咖啡酸乙酯(6)和acteoside(7)。

This paper deals with making stop bleeding sponge with dried small shrimps. Firstly breaking away with inorganic salt and proteir in the dried small shrimps with acid and NaOH, secondly, taking off vinyl-in the chitin with 50% NaOH, temperature is 110 ℃. the last, reacting with chitosamine and PVA-124 make stop bleeding sponge were produced, catalyst is PdCl 2. The sponge film and sparkce is setatisfaction.

用虾壳经除盐，去蛋白处理后，用50％的NaOH溶液在110℃的温度下脱乙酰基制备壳聚糖；以1∶9的稀醋酸溶作溶剂，氯化钯作催化剂，甲苯二异氰酸酯作发泡剂、交联剂，使壳聚糖与PVA－124进行交联成膜，发泡用氨水洗成中性后在80℃的红外灯烘箱下烘干，制得止血海棉

Catalyzed by KF-Al2O3, Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate under microwave irradiation without solvent has been found to proceed with high yield.

采用KF-Al2O3为催化剂，在无溶剂微波辐射下苯甲醛与氰基乙酸乙酯发生 Knoevenagel 缩合反应，得到了较高的产率，并考察了反应条件对产率的影响。

As to the catalytic coupling of aryl bromides, when triphenylphosphine as ligand and malononitrile as subtracts, their isolated yields were generally in 72-88%; While using cyanoacetate instead of malononitrile, the yields were in 67-84%.

当采用常见的三苯基膦为配体、对取代溴苯而言，以丙二腈为底物时，偶联产物的分离产率一般都在72-88％之间；以腈基乙酸乙酯为底物时，分离产率在67-84％之间。

It is a convenient and efficient method of preparation of diethyl N--L-glutamate.

利用上述方法可以方便高效地制备N-［4-苯甲酰基］-L-谷氨酸二乙酯。

The catalyst used diethyl 2,3—di—i—propylsuccinate as internal donor particles were also synthesized.

采用 2，3-二异丙基琥珀酸二乙酯为内给电子体合成了负载型聚丙烯催化剂。

Pharmaceutical characteristics of dimethylamino ethyl(4-chlorophenylmethfoxy )acetate hydrochloridein rabbit was studied and several parameters at different timeand way of medicine administration were determined.

研究了4－氯代苯甲氧基乙酸二甲氨基乙酯盐酸盐在家兔体内的药代动力学，测定了不同时间不同给药方式家兔体内的血药浓度及动力学参数。

Dimethylamino)ethyl methacrylate was polymerized using PS-CH_2Cl as macroinitiator and CuCl/ 2,2 '-Bipyridyl as catalyst in toluene to acquire amphiphilic brush-type copolymers of PS-g-PDMAEMA.

再以氯甲基化的聚苯乙烯(PS-CH_2Cl)为大分子引发剂，在CuCl和2，2′-联吡啶(2，2′-Bipyridyl，bpy)存在下，以甲苯为溶剂，进行甲基丙烯酸N，N-二甲胺基乙酯2-(Dimethylaminoethyl methacrylate，DMAEMA的ATRP聚合，得到两亲性的梳状共聚物PS-g-PDMAEMA。

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。