等分子的

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

聚脒是分链中含有脒基团一类聚合物,由于其在药物控释、光电以及絮凝剂、造纸添加剂等领域潜在应用价值,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.

分分间氢键存在可提高颜料耐久性、耐光性耐气候度等。

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］通过分设计,合成了一种氮-硼配位硼酸酯偶联剂,解决了硼酸酯水解稳定性差问题,同时分中含有氨基、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解中间产物、产物分几何型，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,单元三种基团比例分量及其分布等方面研究了生物降解纤维素酶苇浆残余木素性质。