考察了聚合产物的光化学性质。
The photochemical reactivity of the polymerization products was investigated.
聚合产物的分子量分布较窄;
The molecular weight distribution of polycaprolactones gained were narrow.
采用红外光谱法对聚合产物进行了结构表征。
The structure of polymerization product was characterized by Infrared spectrum.
随着反应时间的增加,聚合产物分子量线性增加。
With the(increase) of treatment time, the molecular weight of the product increased linearly.
温度升高,聚合反应的转化率增加,聚合产物数均分子量降低;
The number-average molecular weight of the polymer decreased, the molecular weight distribution was slightly wide, but the conversion increased as the polymerization temperature increasing.
综述了限制几何构型金属茂催化剂及其聚合产物的研究和开发情况。
The research and development of a metallocene based single site catalyst with constrained geometry configuration and its polymerization products are reviewed.
利用红外光谱和扫描电镜对树脂负载催化剂及聚合产物进行了表征。
The resin-supported catalyst and the copolymerization product were characterized by infrared spectroscopy and scanning electron microscopy.
研究了含有微细炭黑粒子混和单体悬浮聚合产物的粒径及形貌特性。
The particle diameter and surface characteristics of toner particles prepared by suspension polymerization in the presence of carbon black particles were studied.
本发明的催化剂催化乙烯聚合催化活性高,聚合产物不含无机灰分。
The catalyst is used in olefin polymerization, has high catalytic activity and makes the polymerized product contain no inorganic ash.
应用于乙烯聚合时,可以通过改变氢气含量来调整聚合产物的 熔流比;
When the catalyst is applied to ethene polymerization, the fusion-flow ratio of the polymerisate can be adjusted by changing the content of hydrogen.
这些环化物对聚合产物的分子量、分子量分布和官能度都有较显著的影响。
The cyclic compound so obtained has profound effects upon the MW, MWD and functionability of the polymer product.
当前主要采用热引发制备疏水缔合物,但是聚合产物存在分子量不可控的难题。
Currently, the primary way to preparate Hydrophobic association complex is thermal initiation, at the same time another problem is the molecular weight of polymers can not be controlled.
分散体包括在反应活性有机分散介质中在自由基引发剂存在下乙烯基单体的聚合产物。
The dispersion comprises the product of polymerization of a vinyl monomer in the presence of a free radical initiator in a reactive organic dispersion medium.
讨论了单体与氧化剂的比例、反应体系的温度以及聚合反应的时间对聚合产物的影响。
Polymerization conditions, including molar ratio of aniline to APS, temperature of the reaction system and reaction time, were discussed.
采用电镜、红外和吸光度等手段对炭黑丙烯酰胺接枝聚合产物进行了结构与性能的表征。
The structure and properties of grafted carbon black were characterized with the help of TEM, FT IR and light adsorption ratio.
通过比较三乙醇胺和EDB为助剂的研究发现,三乙醇胺更有利于提高聚合产物的分子量。
By comparing triethanolamine and EDB which were both additive agents, triethanolamine had the better performance to improve the molecular weight of polymers.
用不同的溶剂清洗聚合产物,并且在不同的温度下干燥产物,以便得到不同的材料用于研究。
The product of the polymerization was washed in different solvents and dried at different temperatures to get different materials for research.
于是,利用溴代烃和吡啶基的反应证实在甲醇中进行的这个沉淀聚合产物的表面覆盖的是吡啶基。
Then, it was verified with hydrocarbon bromide that pyridyl was grafted on the surface of microsphere prepared in methanol by precipitation polymerization.
实验结果表明,该接枝反应基本符合自由基反应的一般规律,并且其聚合产物具有明显的抗高温能力。
Experiment result shows that the graft copolymerization reaction agrees quite well with the general free radical mechanism and the copolymer has excellent heat stabilization.
用红外光谱法对聚合产物的结构进行了表征,结果显示所合成的聚合物确实为AM和AMPS的共聚物。
The structure of the polymer is characterized by the infrared spectrophotometry(IR), the spectra shows that the product of the polymerization is indeed the copolymer of AM and AMPS.
利用无水乙醇对MMA的转化率进行了检测,采用乌氏粘度计对聚合产物聚甲基丙烯酸甲酯(PMMA)的分子量进行了检测。
MMA transforming rate is measured using waterless ethyl alcohol, and molecular weight of PMMA is measured using Ubbelodhe viscometer.
研究发现,提高聚合温度可以提高聚合产物的抗渗化性,但配制高粘度印花浆时对增稠效果不利,而在配制低粘度印花浆时则反之。
Raising polymerization temperature and decreasing the amount of crosslinking monomer in the synthes ins of the thickener will improve the anti fiushing property of the products.
通过对其中一种聚合物进行详尽的光谱分析表明,可能发生了化学反应,观测到了聚合物的氧化产物。
Detailed spectroscopy of one of the polymers (PDMS) suggests that chemical reactions may be involved, as many oxidized derivatives of the polymer were detected.
随着反应条件的不同,产物可以是由烯酮的双键加成聚合得到的聚酮。
Depending upon reaction conditions, the product may be a polyketone formed by addition polymerization of the ketene double bond.
目的探讨克隆聚合酶链反应(PCR)扩增产物的简便方法。
Objective To explore simple method for cloning the products amplified with polymerase chain reaction (PCR).
尿素的添加对产物的聚合长大过程起了促进作用。
Urea addition has been proved to be effective for the polymerization process.
方法对医院临床分离的8株耐亚胺培南铜绿假单胞菌进行随机引物聚合酶链反应(PCR)扩增,扩增产物进行电泳和聚类分析。
METHODS The genes of imipenem-resistant P. aeruginosa were amplified by RAPD assay in 8 clinical isolates and PCR products were analyzed by agarose gel electrophoresis and cluster analysis.
进一步证实了酶促氧化与非酶促氧化下,聚合反应的底物、产物及反应过程存在差异。
These results further testified that there were great differences of the substrates, products and the course of reaction in the enzymatic oxidation and non-enzymatic oxidation.
制品的红外光谱分析表明聚合反应的产物,即铝硅酸盐凝胶相脱水固化而形成的基体相,很可能具有与蛋白石相类似的微观结构。
The IR spectra indicate that the matrix formed by aluminosilicate gel phase due to the polymerization has possibly the microstructures similar to that of opal.
制品的红外光谱分析表明聚合反应的产物,即铝硅酸盐凝胶相脱水固化而形成的基体相,很可能具有与蛋白石相类似的微观结构。
The IR spectra indicate that the matrix formed by aluminosilicate gel phase due to the polymerization has possibly the microstructures similar to that of opal.
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