acidic group

The Choice of Process Lines and Conditions in Dyeing Acrylic Fibres with Weakly Acidic Group

弱酸性型腈纶针织物染色工艺路线的选择和工艺条件的制定

The macroporous, strongly acidic, high thermally stable canon exchange resin catalysts were synthesized in the steps of polymerization of styrene and divinylbenzene, purifying copolymer, introducing electron withdrawing group, sulfonation and stabilizing active sites.

通过苯乙烯与二乙烯苯聚合、共聚物纯化、引入吸电子基团、磺化、活性基因稳定化过程，合成耐温强酸阳离子交换树脂催化剂。

The surface acidic strength for solid acid catalyst was characterized through temperature programmed desorption. Based on determination of the kinetic model equation of TPD, a new simulation method used to characterize the surface acid strength was developed by using one group of TPD experimental data.

通过推导脱附动力学方程及确定脱附活化能参数的估值方法，建立了基于单套程序升温脱附（TPD）数据确定固体酸催化剂脱附活化能的动力学模拟方法。

The acrylic fibre with weakly acidic group has a low saturation value.

含弱酸性基团的腈纶纤维饱和值较小.

According to the difference of Pb isotopic characteristics, Jiao-Dong Group rocks are divided into two units ie. acidic rock with high μ value of Pb isotopic characteristics and basic rock with "old" Pb characteristics.

按Pb同位素特征划分，胶东群应分为两个单元，一是具有高μ值Pb同位素特征的较酸性岩石，另一个是具有老Pb特征的较基性岩石。