英语人>网络例句>单体 相关的搜索结果
网络例句

单体

与 单体 相关的网络例句 [注:此内容来源于网络,仅供参考]

The preparation method comprises monomer synthesis and polymer synthesis. The polymer synthesis is that cyclopentadienyl sodium monomer is added into metallic cobalt complex-triphenyl phosphorus cobalt chloride under strict oxygen-free and water-free conditions, and then double inner alkyne or outer alkyne conjugate monomer is added in, and after reaction, the precipitation, filtering, abstersion and vacuum-drying are carried out, the large molecules polymer containing cyclopentadienyl cobaltocenium organometallic cobalt is obtained.

制备方法,包括单体合成和聚合物的合成,聚合物的合成是在严格无氧无水条件下,在金属钴配合物三-三苯基磷氯化钴,加入环戊二烯钠单体,随后加入双内炔或双外炔共轭单体,反应后沉淀,过滤,洗涤,真空干燥,得到含环戊二烯茂钴有机金属钴的大分子聚合物。

The comonomer in the copolymer by cat247 is trend to isolated. A few amount of comonomer could make the melting point remarkably decreased and maintain the crystalline at a relative high level. This catalyst can be use to produce the material with low melting point and high intensity such as packing film with low hotsealing temperature. The copolymer by cat24 is characteristic of uniform comonomer distribution and low melting temperature and crystallinity. Therefore, this catalyst could be used to produce LLDPE and POE according the comonomer content; cat246 has a strong copolymerization ability, and the resultant polymer has relatively high blockiness. If this trend is strengthened by adjustment of polymerization condition, the polymer can be used as thermal plastic elastomer with random and crystalline blocks.

由于各个催化剂所产生的聚合物各具特点,所以其潜在的工业用途不同。cat247的产物中共单体趋于孤立分布,极少的共单体即可使熔点明显降低而结晶度仍保持较高水平,有利于制备低熔点、高强度的材料(如低热封温度的包装膜等)。cat24的催化聚合产物无规程度比较高,对降低熔点和结晶度都十分有效,通过控制产物中共单体含量的多少,可以生产LLDPE和POE;cat246共聚合能力强,且产物有嵌段倾向,通过调整聚合条件强化这一倾向后,可以用来生产具有无规-结晶嵌段结构的热塑性弹性体。

Just as monomer is one unit a dimer is two units.

即,单体是一个单体单元,而二聚体是两个单体单元。

The copolymerization compound comprises based on a proportioning ratio by weight: 25-99 percent ethylene aromatic series monomer; 0-30 percent olefinic undersaturation nitrile monomer; 1-50 percent olefinic dibasic acid ramification monomer.

这种共聚组合物按重量百分比包含:25至99%的乙烯基芳香族单体;0至30%的烯属不饱和腈类单体;1至50%的烯属二元酸衍生物单体

This note has discussed where and when could the supercells possibly genesis? What could be the frequentness and repetitiveness of the supercells? And why could the relationship between environmental shear and the movement of supercells differ in different developing stages? All those aid supercell forecast.

对发展成为超级单体的风暴主要生成时间及源地、风暴的多发性和重复性以及环境风与超级单体不同阶段移向移速的关系的探讨,对超级单体的预报有极好的指示作用。

At the first time, the study of misdivision pattern of homoeologous group 5monosomic univerlants from North Chinese common wheat was conducted. The results indicated that there were 37 orietation patterns in 27cobinations including nine cultivars and three chromosomes . According to analysis of 37 orientation patterns, four misdivision patterns were discovered.

介过去的有关痔通小麦〔T.emL.lit Jt$数分裂单体单价体错分裂的研究中,大多集中在错分裂频率及单双极分丸,而X、1上错分裂方式的研究则很小,几乎是一个被忽砚的问题'"''、1%6年R.M.rsk曾把普通小麦羊体单价体的错分裂归结为两纨包括一条染色单体的错分裂及包括两条染色单体的错分裂"。

Finally, the grafting polymerization of textile materials initiated by microwave low temperature plasma was conducted. Knitted cotton fabric was grafted by AMPS first, then knitted cotton and terylene/cotton fabrics were grafted with AMPS/NIPA dualistic monomers respectively. By means of grafting polymerization, the P dualisticintelligent hydrogel was added to textile.The influences of the factors on add-on, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature and time etc, was studied fully. The optimal conditions of grafting polymerization initiated by microwave low temperature plasma were determined by orthogonal design, variance analysis and mathematical statistics method so as to analyze the main influencing factors. Then swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of grafted textile were studied. The performance indexes of hydrostatic pressure, moisture permeability and bursting strength of the knitted cotton and terylene/cotton fabrics before and after grafting were compared and evaluated synthetically.

此后用微波低温等离子体引发纺织材料的接枝聚合反应,分别研究了棉针织物接枝AMPS和棉、涤棉混纺针织物接枝AMPS/NIPA二元单体,使智能凝胶以接枝的方式添加到纺织材料上;详细探讨了微波低温等离子体处理功率和时间、总单体浓度、AMPS单体浓度、交联剂浓度及聚合反应温度和时间等因素对增重率的影响,通过正交设计、方差分析及数理统计对各影响因子进行分析,确定了微波低温等离子体引发接枝聚合的最佳工艺条件;对接枝纺织材料的失水-吸水动力学、温度敏感性、pH敏感性等进行了研究;对接枝前后棉、涤棉混纺针织物的静水压、透湿性和顶破强力等服用性能指标进行了对比和综合评价。

According to the weight percent, the copolymer composition comprises: 25 percent to 99 percent of the vinyl aromatic monomer; 0 percent to 30 percent of the en-unsaturated nitrile monomer; 1 percent to 50 percent ene dicarboxylic acid derivative monomer.

这种共聚组合物按重量百分比包含:25至99%的乙烯基芳香族单体;0至30%的烯属不饱和腈类单体;1至50%的烯属二元酸衍生物单体

Overcharge of single battery is suppressed via limiting its charge cut-off voltage, and overdischarge of battery pack is prohibited by means of controlling the voltage of single battery and the application of power switch.

提出铅酸蓄电池组的电源管理设想,通过有效的限制单体充电终了电压防止单体蓄电池的过充电,通过单体电压检测和功率开关防止铅酸蓄电池组的过放电。

The excited-state intramolecular proton transfer tautomerism reaction of 6-methyl-4-hydroxy pyri-midine monomers and dimmers was investigated by the ab initio method with the self-consistent reaction field with Tomas's polarized continuum mode and CIS theories at HF level on the basis of 6-311+G* and 6-31G basis set. By studying the potential energy surface, it was found that the monomer's ground-state proton transfer process together with the excited-state proton transfer process is a molecular system of four energy level, but dimmers were not, which can be used to explain the fact that UV-visible absorption and fluorescence spectra of monomer and dimers all corresponded to quinoid.

采用 ab initio HF理论的组态相关CIS方法和连续溶剂模型PCM,分别在6-311+G*和6-31G水平上研究了6-甲基-4-羟基嘧啶单体及二聚体激发态质子转移的异构化反应;对其反应势能面的研究发现,单体基态和激发态的异构化反应一起可以形成四能级的分子电子体系,而二聚体的却不能,由此解释了单体和二聚体的紫外吸收光谱和荧光发射光谱均对应于酮式构型的原因。

第3/100页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。