为提高沙蒿胶的水溶性而使其应用得以拓宽，采用向其大分子链引入羧甲基基团，制备羧甲基沙蒿胶的方法。
In order to improve the water solubility of artemisia glue and widen the application field, carboxylmethyl group was introduced into its molecular chain.
聚氨酯全称为聚氨基甲酸酯，是主链上含有重复氨基甲酸酯基团的大分子化合物的统称。
The full name of the polyurethane is the poly - urethane, which is a general designation of the macromolecular compound containing repeated amino acid ester groups.
在PP大分子链上接枝含极性基团的乙烯基单体，可显著提高PP的阻燃性能；
The introduction of the vinyl monomer containing polar group into PP macromolecular chain could improve the flame retardance of PP obviously.
在LLDPE的大分子上没有极性基团，它与很多基材如金属、塑料、玻璃和低的粘结力很差。
There is no polar radical on the macromolecules of LLDPE. It has poor adhesion to many substrates such as metal, plastics, glass and paper.
采用过氧化氢溶液中紫外光氧化的方法在PLLA膜表面引入了大分子过氧化氢基团。
The PLLA membrane was immersed in hydrogen peroxide solution under UV-light to introduce the macromolecular hydroperoxide groups on the membrane surface.
酯酶可以催化涤纶大分子中的酯基水解，为疏水性的涤纶引入亲水性基团，明显提高涤纶的润湿性及手感。
Esterase could catalyze the hydrolysis of ester group in the polyester macromolecular and introduce hydrophilic group into the hydrophobic PET...
试验结果表明，腐殖酸钠的多基团大分子附着在硅酸二钙分子的表面上，使其不与溶液接触而避免二次反应的发生；
The results showed that the big molecules of humic acid sodium enwrapped dicalcium silicate surface , which prevented dicalcium silicate from contacting with the solution.
综述了手性基团在树状大分子中的构建，并对此类化合物的性质及研究和应用前景作了简要介绍。
In this paper, the synthesis of chiral dendrimers was reviewed. The properties and the prospect in research and application of were simply described.
结果表明，与大分子及填料亲和性好的化学基团的选择及配比是研制均匀-分散剂的关键。
The results showed that choice and compounding ratio of chemical functional group having affinity with polymer and filling was the key to develop the homogenizing-dispersing agent.
疏水缔合水溶性聚合物是指在聚合物亲水性大分子链上带有少量疏水基团的一类水溶性聚合物。
The water-soluble polymers with a low content of hydrophobic groups in the main chains are called hydrophobic associative water-soluble polymer.
说明含硅铝酸钠溶液中存在大分子的胶性基团，属于无机高分子溶液，这种网络状“大分子”结构是硅铝酸钠溶液稳定的原因。
It has been proved that colloid units belong inorganic high polymer solution. The structure of network high polymer is why silicon dioxide containing sodium aluminate solution is stable.
说明含硅铝酸钠溶液中存在大分子的胶性基团，属于无机高分子溶液，这种网络状“大分子”结构是硅铝酸钠溶液稳定的原因。
It has been proved that colloid units belong inorganic high polymer solution. The structure of network high polymer is why silicon dioxide containing sodium aluminate solution is stable.
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