Polyamidine is a kind of important polymers,there are some amidine groups in their backbone or in their pendant chain.

聚脒是分子链中含有脒基团的一类聚合,由于其在药、光电子以及絮凝、造纸添加等领域的潜在应用价值,越来越受到重视。

The existence of hydrogen bond within or between the molecules of pigment can enhance the perdurability, light fastness and weather resistance.

分子内和分子间氢键的存在可提高料的耐久性、耐光性和耐气候牢度等。

There are two reactive groups, amino and butoxy in the borate ester molecule.The structure of the borate ester was characterized by IR spectrum.

［中文文摘］通过分子结构设计,合成了一种氮-硼内配位结构的硼酸酯偶联,了硼酸酯水稳定性差的问题,同时分子结构中含有氨基、丁氧基等活性基团。

In this paper,the geometries of leucine,its thermolytic intermediate and final products are optimized by AM1 method,respectively.The parameters of the total energy and bond order etc are obtained.

用AM1方法全优化计算了亮氨酸及其热分中间产、产分子的几何构型，得到其总能量、键级等数据。

The changes in chemical structure of residual lignin in reed kraft pulp after treatment with a white rot fungus,Panus conchatus have been investigated in the present paper.

从元素组成,功能基含量,结构单元三种基团的比例和分子量及其分布等方面研究了生降纤维素酶苇浆残余木素的性质。