Synthesis of phosphono carboxylic acid copolymer with low phosphor and its property

The properties of scale inhibition and dispersion of phosphono containing carboxylic acid copolymers were studied by using the method of static scale inhibition.

用静态阻垢方法系统地研究了膦基羧酸共聚物的阻垢分散性能，并和有机膦酸及羧酸聚合物进行了对比。

The scale inhibiting performance and dispersion ability of the combinations of phosphono PASP, PBTCA and HPA can be the same as the commonly used organophosphorus chemicals.

含膦酰基聚天冬氨酸与PBTCA、HPA等药剂复配得到的低磷药剂性能达到常用有机磷药剂的水平。

The content of phosphorus in the polymer is less than 4%, viscosity-average molecular weight is 1.7 × 104.The IR spectrum characterizes the polymer contains sulpho, carboxyl and phosphono in its molecular structure.

元素分析表明共聚物中磷元素质量分数<4%，黏均相对分子质量为1.7×104，红外光谱分析证明聚合产物分子结构中含有羧酸基、磺酸基和膦酰基等官能团。

Researches on calcium carbonate inhibition behavior of phosphono carboxylic acid copolymers-a new type green scale inhibitor

新型阻垢剂-膦酰基羧酸共调聚物对碳酸钙阻垢性能实验研究

The copolymer containing phosphono and sulfonic group ( PAMPS) is experimentally synthesized.

利用实验方法合成了含膦磺酸基共聚物PAMPS，通过正交试验评价优选出最佳合成条件，对其阻垢性能进行了评价。

Corrosion inhibitor and germicide ( PS-12) which is a quarternary ammonium salt and has the phosphono-and carboxy groups, has been studied.

研究了含有膦酰基、羧基的季铵盐缓蚀杀菌剂PS-12对45碳钢在模拟循环冷却水中的缓蚀性能、杀菌性能及缓蚀机理。

The article introduces the research results and progress of scale inhibition and dispersion agent of the copolymer of phosphono carboxylic acid in recent 20 years.

介绍了近20年来膦酰基羧酸共聚物阻垢分散剂&大分子有机磷酸的研究现状和进展情况。

Research progress of scale-inhibition dispersion agent of copolymer of phosphono carboxylic acid Synthesis of Phosphono Carboxylic Acid Cotelomer and Its Property

膦酰基羧酸共聚物阻垢分散剂的研究进展膦酰基羧酸共调聚物的合成及性能

In addition, the mechanism of phosphono carboxylic acid copolymers'scale inhibition was analysed through electronic microscope;

此外，结合垢粒的电镜照片对其阻垢机理进行了简要分析。

An experimental research on changing law of calcium carbonate inhibition behavior of phosphono carboxylic acid copolymers was carried out by using a static experimental method.

本文采用静态实验方法，对不同条件下新型阻垢剂膦酰基羧酸共调聚物抑制碳酸钙垢的性能变化规律进行了实验研究。

It was showed that the phosphono carboxylic acid was very suitable for the water treatment process for industrial circulating cooling water system.

结果表明，膦酰基羧酸共调聚物极适于工业循环冷却水系统的水处理过程。

Phosphono-containing maleic anhydride-acrylic acid copolymer as scale inhibitor was synthesized from maleic anhydride ( MA) and acrylic acid ( AA) in water solvent using persulfate-hypophosphite as oxidation-reducton initiator.

以水为溶剂，马来酸酐（MA）、丙烯酸（AA）为单体，过硫酸盐-次磷酸盐氧化还原体系为引发剂，合成马来酸酐-丙烯酸含膦共聚物阻垢剂。

Phosphono PASP has been prepared.

自行制备了含膦酰基聚天冬氨酸。

Synthesis and flame retardance of 5,5-dimethyl-4-substitued phenyl ( hydrogen)-1,3,2-dioxaphosphorinan ( sulfur substitued) phosphono phenylhydrazine

5,5-二甲基-4-取代苯基（H）-1,3,2-二氧磷杂环己基（硫代）磷酰苯肼的合成及其阻燃性能

As a result, the phosphono carboxylic acid copolymers showed the best calcium carbonate inhibition capability at60 ℃;

研究表明，在水温低于60℃的情况下，膦酰基羧酸共调聚物具有良好的抑垢性能；

Hijackers attempted to divert the plane Cairo, but Egypt refused to allow the plane to land.

劫持者企图让这架飞机改道前往开罗, 但是埃及拒绝让这架飞机降落.

Of the cases reported worldwide, mothers are the main abductors when a marriage breaks down.

在世界各地报告的案例中,当婚姻破裂时, 母亲是主要的诱拐者.

You said that the night your son was abducted.

你说你儿子被绑架的那天晚上。

Local police think she may have been abducted.

警方认为她可能被绑架。

China estimates 20,000 children are abducted every year.

中国估计每年有2万儿童被拐卖。