顺丁烯

In this paper, UV-vis spectrum, IR spectrum, viscosity measurement and ~1H NMR spectra of polymer were provided in order to show the characteristic of copolymer between pinene epoxides and maleic anhydride.

本文还使用紫外光谱、红外光谱、粘度测定、核磁共振等方法对共聚产物进行了分析，研究了环氧蒎烷与顺丁烯二酸酐共聚合产物的特性。

Treated by transesterification with methanol to 60% of the theoretical extent and esterified with maleic anhydride,then oxidized by air with supported metal stearate catalyst at 80 ℃ for 4-6 h and sulphited by sulphite,a novel combined sulphited fatliquoring agent is obtained from rape oil.

对菜油进行甲醇酯交换反应，反应程度控制在理论值的 6 0 %，然后用顺丁烯二酸酐酯化酯交换产物。这种酯化物在负载型金属皂的催化下，用空气进行氧化，温度 80℃，时间 4～ 6h。

It is pointed out that the biodegradability of modified sodium polyacrylate can be improved by introducing vinyl alcohol to its molecular chain.

综述了无磷洗涤助剂的开发进展，并对 4A沸石、偏硅酸钠、聚丙烯酸钠、沸石P、顺丁烯二酸酐丙烯酸共聚物钠盐、层状结晶二硅酸钠等助剂的性能作了评述；指出在改性聚丙烯酸钠分子链中引入乙烯醇能改善其生物降解

Cloud point curves from light scattering experiment verify the calculation results;The agreement between the cloud point curve s and the binodal is quite well.

用浊点测定、傅里叶变换红外光谱和微差扫描热分析等方法研究了苯乙烯-顺丁烯二酸酐共聚物与苯乙烯-丙烯腈共聚物共混物的相容性。

In the recent years, the company has developed series of the down-stream derivatives of P/O-Chlorotoluene, i.e. 3,000 t/a O- Chlorobenzaldehyde and O-Chlorobenzyl Chloride, 3,000 t/a P- Chlorobenzaldehyde and P-Chlorobenzyl Chloride, 1,500 t/a 2.4- Di chlorotoluene etc. In addition, there is the by-product of 30,000t/a of chlorhydric acid (31-33%). In 2008, the company invested 80 mln yuan, to build the project with 25,000t/a of Maleic Acid by adopting the up-to-date in China technology, thus to improve the product range to a greater extent, and hence to sharpen its competitive edge.

近年来又发展了对、邻氯甲苯的下游衍生系列产品：3000t/a邻氯苯甲醛、邻氯氯苄，3000t/a对氯苯甲醛、对氯氯苄，1500t/a2，4－二氯甲苯等，另有副产盐酸（31～33％）30000t/a.2008年，公司投资8000万元，采用国内最先进的技术建成了25000t/a顺丁烯二酸酐项目，大大改善了公司的产品结构，提高了企业的竞争能力。

Good thermal stability, High mechanical strength.Used as catalyst or catalyst carrier in the manufacturing of the important industrial products, such as cyanuramide, benzene anhydride, maleic acid anhydride, butadiene rubber, acrylic nitrite, etc.

用途：本产品在三聚氰胺、苯酐、顺丁烯二酸酐、顺丁橡胶、丙烯腈等重要工业品生产中用作催化剂及催化剂载体，也广泛用于石化产品的精制脱除芳烃，也可用于有机气体、液体的选择性吸附分离及离子交换脱除水中多价有害元素等。

ABSTRACT In this paper, by employing dicarboxylic acids with special conformation, i.

利用几个结构上有特点的二元羧酸，即2，6-吡啶二甲酸、三个异构体苯二甲酸，顺丁烯二酸和4，4'-联苯甲酸作为首要桥基配体，并结合使用含氮中性配。。。

A hyperbranched macromonomer (3) was synthesized with maleic anhydride,diethanolamine,o-phthalic anhydride by step polymerization,take advantage of the different activities of functional groups.

以顺丁烯二酸酐、二乙醇胺、邻苯二甲酸酐等为原料，利用官能团活性的差异，通过逐步展开的方法合成了含有双键和端羟基的聚型分子结构的超支化大单体(3)。

Two kinds of high alcohol acrylates were prepared by octadecyl alcohol and hexadecyl branched alcohol,respectively.The polymers of depressants were prepared by maleic anhydride-styrene-higher alcohol acrylates.By using these depressants,the pour points of the Liaohe crude oils were lowered form 30℃ to 20℃.

分别采用碳十八直链醇、碳十六支链醇与丙烯酸合成烷基酯，将烷基酯再与顺丁烯二酸酐、苯乙烯聚合制备的三元共聚物，对辽河油田的高凝原油的降凝效果进行了评价，实验发现这两种聚合物对凝固点为30℃原油都具有较好的效果，降幅可达10℃左右，但对凝固点为41℃的原油较差分别为3℃和6℃。

The above resins are irregular transparent solid which are the products of esterification by pentaerythrite and the adducts of rosin and maleic anhydride.

马林酸树脂又名失水苹果酸树脂，由松香与顺丁烯二酸酐加成反应后并以多元醇酯化而制得的不规则透明粒片状固体。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。