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...
利用化学改性法将亲水性基团引入E -51环氧树脂链上，经冰乙酸成盐并加水制备改性树脂水性体系。
Hydrophilic groups were introduced onto E-51 epoxy resin by chemical modification method to prepare epoxy resin aqueous system.
采用化学改性法，选择多官能团酚醛环氧树脂(F—51)与二乙醇胺进行定量加成反应，合成了一种在分子结构上既具有环氧基团，又具有亲水性基团的改性树脂。
According to the molecule design, a kind of modified resin which have both epoxy groups and hydrophilic groups was synthesized from polyfunctional group novolac epoxy resin (F-51) and diethanolamine.
R基团赋予氨基酸物理化学特性，例如极性（亲水性和疏水性）以及电荷（酸性或正电荷，碱性或负电荷）。
The R-groups give the amino acids their physical-chemical characteristics such as polarity (hydrophobic or hydrophilic) and charge (acidic or positive versus basic or negative).
蛋白质链的某些基团倾向于和水结合（亲水性），但其他油性基团则倾向于逃离水（疏水性）。
Some parts of a protein chain like to interact with water (hydrophilic), while others are oily and want to get out of water (hydrophobic).
这些表面活性剂具有较高的表面活性和相同的亲水基，1 ，3二氧杂环戊烷基团也有一定的亲水性。
The results showed that these surfactants have high surface activity and same hydrophilic group, and the 1,3dioxolane ring are also hydrophilic.
同时运用IR和SEM对KAC进行了结构分析，其富含的亲水性离子基团，以及不规则的多网格微观结构可成为高湿环境中长效吸湿剂开发应用的参考依据。
The structure of KAC was characterized by IR and SEM, its rich hydrophilic and ionic groups and irregular network can supply reference for application as long-term desiccant in high humidity.
用带有疏水基团的亲水性多糖，可以方便有效地稳定糖化酶，明显提高了糖化酶的储存稳定性。
Glucoamylase was conveniently and effectively stabilized by using hydrophilic polysaccharide with hydrophobic groups, and the storage stability of glucoamylase was greatly increased.
随着亲水性羧酸基团含量的增多，凝胶体系的强度和结构的稳定性提高，对外界的刺激响应逐渐减弱。
With increasing the content of hydrophilic carboxylic group, the strength and stability of gels increase, while the stimuli-responsive capability of gels decreases.
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.
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.
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