结果表明，这类聚合物冠醚对钠、钾离子有很强的络合能力，并有良好的相转移催化活性。
It is shown that these polymers have very high complexing capacities with potassium and sodium ions and have good phase transfer catalysis activity.
各种功能化聚合物类型覆盖化学应用的宽广领域，包括聚合物试剂，催化剂，载体，表面活性剂，稳定剂，离子交换树脂等。
The various types of functionalized polymers cover a broad range of chemical applications, including the polymeric reactants, catalysts, carriers, surfactants, stabilizers, ionexchange resins, etc.
研究了以KOH为催化剂，二元或三元醇为起始剂，采用阴离子开环聚合合成淬火剂用共聚醚。 结果表明：产物的分子量随起始剂和杂质量的减少而增加；
The synthesis of oxyethylene oxypropylene copolyethers used for quenchant was studied by using anionic ring opening polymerization, diol or triol as the starting agent and KOH as the catalyst.
研究了聚合溶剂，单体浓度，反应温度以及配合物中稀土离子性质对催化活性和所得聚苯乙烯分子量的影响。
The effects of the solvent, monomer concentration, temperature and rare earth element on the polymerization and the molecular weight of polymer were investigated.
从聚合物的结构表征及机理探讨表明：颜色突变后，体系产生了新的活性中心，催化机理发生了转变——由配位机理转变为阳离子机理。
Structure characterization and mechanism study showed that, after the color change, new active center formed and polymerization changed from coordination to cationic mechanism.
以聚合氯化铝（PAC）、阴离子聚丙烯酰胺（PAM）为混凝剂，以H2O2-O3为氧化剂，采用混凝—催化氧化法处理对丁苯橡胶生产废水。
Styrene butadiene rubber production wastewater was treated by the coagulation-catalytic oxidation process with PAC and PAM as coagulants and H2O2-O3 as oxidants.
以发烟硫酸-高氯酸为催化剂，通过四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃(PTHF)。
Polytetrahydrofuran (PTHF) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst.
通过混合用过的催化剂、金属和布朗斯台德酸以加氢混合聚合物 来对已经被所述混合聚合物失活的所述用过的酸性离子液体催化剂进 行再生。
A used acidic ionic liquid catalyst, which has been deactivated by conjunct polymers, is regenerated by combining the used catalyst, a metal and a Broensted acid to hydrogenate the conjunct polymer.
然而，两亲嵌段共聚物的传统的制备方法是有机金属催化剂催化的活性离子聚合法，故产物中难免会残留有毒的有机金属催化剂。
At present, block copolymers containing PCL and PEG chains are mainly prepared by active ionic polymerization using traditional chemical catalysts, some toxic organometallic compounds.
中心金属离子周围的电子效应和空间效应影响着催化剂的反应性能和所得聚合物的微观结构。
The steric and electronic configuration around the center metals has profound effect on the polymerization activity and the stereo - and regio-selectivity of the resulting polymers.
中心金属离子周围的电子效应和空间效应影响着催化剂的反应性能和所得聚合物的微观结构。
The steric and electronic configuration around the center metals has profound effect on the polymerization activity and the stereo - and regio-selectivity of the resulting polymers.
应用推荐