单体

The chemical component and structure of polyborazine were analyzed, and the influence of different propylamine/isopropylamine molar ratio on the polyhorazine properties and spinnability were examine.

通过分析不同正丙胺／异丙胺配比制得的聚合产物的组成与结构，探讨了不同单体的胺基取代基对先驱体的聚合反应性及对产物结构的影响。

Based on B-trichloroborazine with boron-nitrogen ring structure, the monomer was synthesized by substitution reaction with different molar ratio of propylamine/isopropylamine, then the corresponding polyborazine was obtained through thermal polymerization.

以三氯环硼氮烷为原料，将其与正丙胺/异丙胺进行共取代反应，制得了不同结构的取代单体，再经热聚合反应获得了相应的聚硼氮烷先驱体。

Based on B-trichloroborazine with boron-nitrogen ring structure, the monomer was synthesized by substitution reaction with different molar ratio of propylamine/isopropylamine, then the corresponding polylyborazine was obtained through thermal polymerization.

以三氯环硼氮烷为原料，将其与正丙胺／异丙胺进行共取代反应，制得了不同结构的取代单体，再经热聚合反应获得了相应的聚硼氮烷先驱体。

Three flavonoids compounds: kaempferol *!, quercetin *, and isoquercitrin *# were isolated from the leaves of Cyclocarya paliurus Batal.

采用溶剂萃取及多种色谱技术分离纯化，根据理化性质和光谱分析方法鉴定其结构，确定从青钱柳中分离得到山柰酚、槲皮素和异槲皮苷 3个黄酮单体化合物，并用反相高效液相色谱法对其含量进行了测定，测得各自在甲醇和水提取物中的含量：山柰酚 0 。

Acrylic acid was isothermally polymerized by precipitation polymerization in toluene at various monomer and initiator concentrations over the temperature range of 40C–50C.

丙烯酸是恒温聚合的沉淀聚合在甲苯在不同的单体和引发剂浓度，温度范围-40 ℃， 50欧分。

With the development of new techniques and methods, carbon and hydrogen isotopic compositions of individual compounds become a more and more important field in organic geochemistry.

随着新技术、新方法的发展，生物标志化合物的单体碳、氢同位素组成研究正在成为有机地球化学领域的一个重要发展方向。

The effect of the itaconic acid content in copolymers on the structure and properties of PAN precursors was investigated.

通过元素分析、IR、DSC、13C-NMR等手段，讨论了共聚单体IA对共聚反应及聚丙烯原丝结构和性能的影响。

In this work, properties of acrylonitrile-co-ammonium of itaconic acid system was studied in detail in order to accumulate foundation for high performance carbon fibers.

本文将衣康酸铵作为第二单体，系统研究了丙烯腈-衣康酸铵二元体系作为炭纤维前驱体的特点，以期为开发适用于高性能炭纤维的二元PAN原丝奠定必要的基础。

By using cadmium acetate as catalyst, polyitaconic anhydride was prepared through ring opening polymerization of itaconic anhydride.

环酯单体在不同引发/催化体系作用下的开环聚合是制备可生物降解脂肪族聚酯的主要方法。

The itaconic acid carboxylated ACM has better cure characteristics and mechanical properties than the acrylic acid carboxylated ACM.

对于以衣康酸为交联单体的ACM，辐射法制备的橡胶比化学法制备的橡胶拥有更好的硫化特性、更高的凝胶含量和更优异的机械性能。

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。