异丁基

Compared with TEA,TiBA activated system produced more blocky copolymer,but the blockiness of its block fraction is lower.

与三乙基铝相比，三异丁基铝为助催化剂得到的不溶级份含量及丙烯含量都较高，但其嵌段性却较低。

The polymerization of butadiene in benzene in the presence of titanium tetraiodide triisobutyl aluminium catalyst has been studied.

研究了丁二烯在苯中有四碘化钛-三异丁基铝催化剂的存在下的聚合。

Thd polymerization of butadiene in benzene in the presence of titanium tetraiodide triisobutyl aluminium catalyst has been studied.

研究了丁二烯在苯中有四碘化钛-三异丁基铝催化剂的存在下的聚合。

I-BuMgBr was the best Grignard reagent and its enantioselection was up to 94%.

其中，异丁基格氏试剂加成产物ee值最高，为94%。

The main contents were Alcohol,-2-Hexen-1-ol, 3-t-Butyl-oct-6-en-1-ol, Benzyl Alcohol.25 compounds were identified in Hongbaoshi, representing 62.65% of the total peak area, and 25 kinds were in sole possession for it. The main contents were Alcohol,-2-Hexen-1-ol, 3-t-Butyl-oct-6-en-1-ol, Hexyl acetate.

从砧木为'吉塞拉'的'红宝石'大樱桃果实中共检测出25种香气成分，占总峰面积的62.65%，其中21为其独有，相对含量较高的是乙醇、2-己烯－1-醇、3-异丁基－6-烯－1-辛醇和乙酸己酯。

Methyl isobutyl ketone is one of the most important chemical products, which is widely used in the field of chemical engineering.

甲基异丁基酮是一种重要的化工原料，应用十分广泛。

In our country, the acetone is mainly used to produce solvent, acetone cyanide alcohol / methyl methacrylate, methyl isobutyl ketone, bisphenol A, medicines and rubber additives.

国内丙酮主要用于溶剂、丙酮氰醇/甲基丙烯酸甲酯、甲基异丁基酮、双酚A、医药以及橡胶助剂等。

The factors which affect the average molecular weight of the polymer of AM and DMDAAC were investigated. The optimal reaction conditions are as follows: the concentration of monomer AM was 30%, while DMDAAC was 5%; the reaction temperature was 30℃, the amount of initiators at the low temperature stage was 0.05‰(compared to the weight of the monomers joining the polymerization), while V-50 was 0.025‰, the weight ratio of potassium persulphate to sodium bisulphite is 1:1, the amount of carbamide was 40‰, and complexing agent was 0.05‰, besides, aerate nitrogen gas for 8min, then the high molecular weight polymer (M=1.217×10^7) could be got after 16h reaction.

研究了影响AM与DMDAAC共聚物的平均分子量的因素，得到了优化条件为：单体浓度为30%，DMDAAC与AM摩尔比为5：95，聚合温度为30℃，低温段引发剂用量为0.05‰，K2S2O8与NaHSO3质量比为1：1，偶氮二异丁基脒盐酸盐(V-50)用量为0.025‰，尿素用量为40‰，乙二胺四乙酸二钠(EDTA-2Na)用量为0.05‰，在此优化条件下聚合反应16h后得到分子量为1.217×10^7的阳离子型聚丙烯酰胺。

MIPC was photocatalytically transformed to 3,4-dihydroxyl hypnone, 2-iso-butyl phenol and acetic acid, and mineralized ultimately in oxygenated TiO2 slurries. The photocatalytic degradation processed according to first order kinetics with the apparent rate constant depending on initial concentration, light intensity and the amount of catalyst. The amount of catalyst had an optimum value (0.5g/L). The apparent rate was inversely proportional to square root of the initial concentration approximately.

MIPC能被光催化转化成3，4-二羟基苯乙酮、2-异丁基苯酚和乙酸等产物并最终被矿化，MIPC的光催化反应过程符合一级动力学规律，其表观速率常数与MIPC的起始浓度、TiO2量和光强等因素有关，MIPC降解的反应速率与入射光强成正比，与MIPC初始浓度的平方根成反比。

To improve the extraction of gold from electronic waste, statistical methods were used to analyze the impact of different factors affecting the extraction of Au using methyl isobutyl ketone as solvent.

以电子废料中的金为研究对象，用统计学方法对甲基异丁基甲酮萃取电子废料中金的影响因素进行了探讨和分析。

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