胺化

Catalytic amination of alcohols was systematically discussed and reviewed.

对醇的催化胺化反应进行了系统讨论和综述。

This paper selects"Preparation and characterization of palladium-lanthanum supported catalyst and its use in the amination of 2, 6-diisopropylphenol"as the research subject of thesis for Doctor's Degree, and has theoretical importance and practical value.

因此，本论文选择了"钯-镧负载型催化剂的制备、表征及其在酚类胺化反应中的应用"这一课题，具有重要的理论意义和实用价值。

The main improv ing target of the amination catalysts is to promote their selectivity.

改进脂肪醇胺化催化剂的主要目标是提高其选择性。

The content of Ni〓 in the reduced catalysts and the amount of dialkylmethylamine as main by-product in the amination products were closely related.

将催化剂的还原性能和催化剂进行胺化评价反应的选择性数据进行关联，发现催化剂的选择性和CuO的还原性能无关，而和NiO的还原程度密切相关。

Meanwhile,the efficiency of aniline,a useful concept,was proposed to evaluate the reactive extrusion process.

同时，首次提出了SMA熔融酰亚胺化反应挤出过程中的苯胺有效利用率概念。

Block-copolyimide film from pPDA/ODA-PMDA was studied by TEM, SEM, PLM, ultra-deep three-dimensional microscope, TMA, and WAXD, which showed that the extensile strength and modulus of b-PI film were higher than that of irregular copolyimide film. It was also revealed that there was a large amount of crystallite formed in b-PI film, which was mainly attributed to its chain structure: rigid pPDA-PMDA chains were easy to form crystal nucleus because of phase separation, based on which semi-rigid PMDA-ODA molecular chains began to crystallize.

以pPDA／ODA-PMDA型嵌段共聚酰亚胺薄膜为对象，借助TEM、SEM、PLM、超景深三维显微镜、TMA、WAXD等手段，研究结果表明：b-PI薄膜的拉伸强度、弹性模量均高于无规共聚酰亚胺薄膜；b-PI薄膜中形成了大量的微晶，这是由于刚棒状的pPDA-PMDA分子链段因相分离容易形成晶核，然后半刚性的PMDA-ODA分子链段以PMDA-pPDA为晶核进行晶体生长造成的，而且ODA-PMDA分子链的结晶和酰亚胺化反应基本上是同步进行的。

Double hydroxyurea in organic synthesis as a reducing agent efficient use of reagents can be used as the use of hydroxylamine.

双羟基脲在有机合成中作为高效还原剂使用，也可以作为羟胺化试剂使用。

Ce NH〓 at 150℃, which can't separate the temperature of imide reaction from that of crosslinking reaction.

Ce。NH〓在150℃就可以催化CNPA发生交联反应，不能将低聚物的亚胺化温度和交联温度分开。

It was detected by DSC that the temperature of imide and crosslinking reaction are differentiated by the catalysis of acetyl acetone copper and rare earth.

DSC研究表明乙酰丙酮铜催化剂和稀土催化剂可以分开低聚物的亚胺化和交联反应温度。

Integral method with 31 types of kinetic function was proposed to define the most probable kinetic function g; the Ozawa、KAS and iterative procedure methods were employed to calculate the activation energy E.

采用积分法结合31种动力学函数来判断亚胺化反应的函数g，由Ozawa、KAS和迭代法求取活化能Ea值。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。