丁烯

Here we synthesized a CTA Z-1, 2-(oxiran-2-ylmethoxy ethane, and used it to end the ROMP reaction.

然后，我们利用酯化的方法，设计合成了叔丁基保护的降冰片烯衍生物单体。

The effect of cationic comonomer methacryloyloxy ethyl trimethylammonium chloride on the rate of polymerization,the dissolvability of polymer in THF,the stability and pH value of methyl methacrylate/butyl acrylate/DMC soap-free emulsion were studied systematically.

研究了阳离子型共聚单体甲基丙烯酰氧乙基三甲基氯化铵的用量对甲基丙烯酸甲酯/丙烯酸丁酯/DMC 无皂乳液聚合速率、聚合物在THF中的溶解性、乳液稳定性及pH值的影响。

The properties of single-chain and pauci-chain polystyrene microspheres and recent results on the electron microscopy and selected area electron diffraction of single-chain monocrystals of polyethylene oxide, isotactic polystyrene, cis-1, 4-polybutadiene and guttapercha are presented and discussed.

介绍和讨论了单链和寡链聚苯乙烯玻璃体微球的性质以及聚环氧乙烷、全同立构聚苯乙烯、顺-1， 4-聚丁二稀、反-1， 4-聚异戊二烯单链单晶电子显微镜和选区电子衍射观察的最新结果。

The solubility and the dissolution rate of cellulose in two ionic liquids with different structure AMIMCl and BMIMCl were investigated.

测定了纤维素在不同结构的离子液体——1-烯丙基-3-甲基咪唑氯化物和1-丁基-3-甲基咪唑氯化物中的溶解度和溶解速率。

It also classifies them in accordance with the compound method of triazene reagents as follows: reagents diazotizated with sodium nitrite and muriatic acid, reagents diazotizated with nitrosyl positive ion, reagents diazotizated with n-butyrate nitrite.These reagents with high sensitivity and good choice have been widely applied to the determination of microa mounts of cadmium and...

按三氮烯类试剂合成的方法进行分类，分别为在亚硝酸钠和盐酸作用下重氮化的试剂，在亚硝酰正离子作用下重氮化的试剂，在亚硝酸正丁脂作用下重氮化的试剂，此类试剂灵敏度高，选择性好，广泛应用于被镉、汞等过渡金属离子污染的环境样品的分析中。

It is indicated by the results that using butanol,butanol residue and octene aldehyde residue as the extracting agent,the treatment of butanol wastewater will get a good result with the COD removed to be 83%～94%,u...

实验结果表明：以辛醇、辛醇残液和辛烯醛残液作为萃取剂，在废水pH值为1~3、萃取剂与废水的体积比为1∶(1~12)、温度为25~60℃条件下，对丁辛醇废水进行萃取处理，均可得到较好的处理效果，COD去除率可达83%~94%。

Based on the experimental results,di-butyl-peroxide,di-cyclopentadiene and propyl nitrate are found to be sensitive to the change of heating temperature and heating time,and their thermal decomposed products can be detected easily.

实验表明，在343～473 K温度范围内，过氧化二叔丁基、双环戊二烯和硝酸丙酯对受热温度和受热时间的变化较为敏感，热分解现象明显，热分解产物易于检测。

Three methods are used to prepare molecular imprinted polymers,which include conventional bulk technique or polymerization with ultraviolet initiated in low temperature and polymerization with silica-gel as sacrificial materials. In the polymerization procedure , Sulfamethazine(SM2)and Sulfisoxazole were used as target template molecules, methacrylic acid and 4-vinylpyridine(4-VP) and acrylamide were selected as functional monomers, ethylene glycol dimethacrylate as crosslinker, azobisisobutyronitrile was used as initator.

主要工作如下：首先，以磺胺异噁唑和磺胺二甲嘧啶为模板，分别以4-乙烯基吡啶，甲基丙烯酸，丙烯酰胺为功能单体，以二甲基丙烯酸乙二醇酯为交联剂，偶氮二异丁腈为引发剂，采用了传统方法(60℃恒温水浴)、牺牲硅胶法及低温紫外光聚合法等三种方法合成了一系列的磺胺类药物印迹聚合物。

If seizures supervene, the treatments of choice are benzodiazepines, gabapentin, and vigabatrin.

急性卟啉病发作时，如果出现痫性发作；可以选用苯二氮卓类药物、加巴喷丁、氨己烯酸等药物控制发作。

In the paper,the essential oil of Syringa oblate Lindl var affinis Lingelsh bud from Qinghai was extracted by the method of water vapor distillation.

采用水蒸气蒸馏法提取了产自青海的白丁香花蕾的挥发油，应用GC/MS方法对其化学成分进行了分析，分离出47个色谱峰，鉴定了26个化合物，占总峰面积的88.7%，主要成分是丁香酚、丁香醇、石竹烯、苯乙醇等化合物。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新