亲水基团 meaning in English
hydrophilic grouping
hydrophilic groups
hydrophilic radical
Examples
- Its molecular structure shows that it acts long carbochain as hydrophobic group and serves carboxyl and hydroxyl group as hydrophilic grouping
其分子结构特征为:以长碳链烃基为憎水基, ? coom为亲水基团。 - Silylate - terminated polyurethanes with built - in hydrophilic sites were synthesized . when the polymer is dispersed in water , the silane alkoxy end - groups of the polymer undergo hydrolysis , followed by condensation to form a stable cross - linked aqueous dispersion . tem studies indicated that with more incorporation of hydrophilic sites , the particle size of the dispersion decreased . it was also found that the film property depended on the particle size when the crosslinking density in particels was much higher . the average molecular weight of the elastically effective network chain mc measured by swelling experiments shows fairly good agreement with the theoretical value of mc . it was also found that the cross - linking density of the casting film may increase during the film formation and drying process
将硅氧烷封端的含亲水基团的线性聚氨酯预聚体分散于水中，获得稳定的聚氨酯分散体.由于硅氧基团水解、缩合，在分散体粒子内产生扩链交联反应，生成了交联水基聚氨酯分散体.透射电子显微镜研究表明分散体粒径小、分布宽.扫描电子显微镜研究了成膜结构及成膜性能与粒径的关系.溶胀实验计算获得的两交联点之间的平均分子量与理论平均分子量相符.研究还发现此分散体膜在干燥过程中可进一步交联.膜的水溶胀及机械性能表明，此分散体具有极大的工业应用价值 - It is the especial congregate structure of polymer matrix that is necessary for the forming of three - dimensional interpenetrate network between the polymer and copper . the mma unites lead to the advantage of improving fiexibity of the film , destroying the formal arrangement of macromolecule chain in polymer and decreasing the degree of crystallization . the ita unites help the solvolyzed copper ion transfer in the film and benefite the forming and establishment of the networks of polymer matrix
聚合物基体特殊的聚集态结构是互穿立体网络形成的必要条件，皿m的加入有利于破坏丙烯睹大分子链的规整性，使结晶度降低，提高聚合物的柔韧性，含亲水基团的单体（ ita 、 as ）存在有利于降低离子迁移的界面能，提供溶剂化铜离子迁移的途径以及聚合物基体网络结构的形成和稳定。 - Photoluminescence characteristics of four hemicyanine derivatives with similar molecular compositions but different donor - acceptor groups in langmuir - blodgett ( lb ) films have been studied by steady state and time - resolved fluorescence spectroscopies . the study mainly include the aggregation behavior of hemicyanine derivatives in lb films , the influence of the donor - acceptor on the excited level and excited lifetime of the hemicyenine derivatives
通过改变半花菁的亲水基团与疏水基团而得到了四种半花菁衍生物，利用稳态和时间分辨荧光研究了不同亲水基团与疏水基团对半花菁衍生物光学特性的影响.主要包括半花菁衍生物在lb膜中的聚集特性,亲水基团与疏水基团对半花菁衍生物激发态寿命的影响等