研究了低分子量脲甲醛缩聚物水溶液的粘度特征和表面活性及其与胶囊包封率的关系。
The properties of viscosity and surface activity of urea-formaldehyde oligomers were studied, as well as their relationship with the encapsulation efficiency of microcapsules.
它是酚与甲醛在一种碱性催化剂作用下缩聚的聚合物。
It is a condensation polymer of phenol and formaldehyde activated with an alkaline catalyst.
以溶液缩聚法，由腰果酚分别与甲醛、正丁醛、糠醛和三氯化铁制备了腰果酚醛铁聚合物。
Cardanol -aldehyde ferric polymers were prepared by condensation polymerization with formaldehyde, n-butyl aldehyde, furfural and iron trichloride.
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